by | Sep 27, 2025
PRODUCT PROPERTIES
All time calculations are based on temperatures of 77 F, 25 C
Lab tested with Norox 925H MEKP
Viscosity
#5 spindle, Brookfield RFG at 2.5 RPM
700-1000 cps
Thixotropic Index 4
Gel time @ 2% MEKP
based on a 100g mass
11-19 minutes
Weight per gallon 8.7 lbs/gal
Coverage per gallon, 20 mil thickness 80 sq. feet
KEY USES
Topcoat for plugs
and
patterns
Mold resurfacing
Other open-c ure high
gloss interior coatings
Interior applications
above 200
F
The Duratec Vinyl Ester Hi-Gloss Topcoat is an easy-t o-apply topcoat for
pattern
surfaces and resurfacing molds. Providing
tremendous gloss transfer to
the mold s gelcoat without the requirement of wax or other additives, this
product is great for plug & pattern applications.
DURATEC CLEAR VINYL
ESTER HI-GLOSS TOPCOAT
PRODUCT # 1904-045
SAFETY & HANDLING
Dur
atec Vinyl Ester Hi- Gloss Topcoat is extremely fla mmable. Do n ot apply n ear
sp
arks, open fla mes or heat. Keep a rea ventilated. Do n ot smoke. Avoid c ontinuous
breathing of vapor. Duratec Vinyl Ester Hi- Gloss Topcoat contains ingredients
whi
ch could be harmful if mishandled. Contact with sk in
and eyes should b e
avoi
ded and necessary protective equipment and clothing shoul d be
worn.
Ind
ividuals should w ash with so ap and water before e a
ting or drinking. All
contai
ners should be properly labeled to prevent accidental ingesti on or
improper
dis
posal. Individuals should re sea
l any partly used material back in th e container.
Store under cool, dry conditions and away from open flames and high
temperatures.
For more d
etailed instructions on storage, please see the MSDS sheet.
Liability/warranty statement: Our products are intended for sale to industrial and commercial customers. We request that
customers inspect and test our products before use and satisfy themselves as to contents and suitability. All claim requests
must be made in writing and are subject to review, including storage temperature verification and retain evaluations. The
exclusive rem
edy for all proven claims is replacement of our materials. In no event shall we be liable for special, incidental or
consequential damages, including damages caused in transit (exworks terms). Nothing herein shall constitute a warranty,
expressed or implied, including any warranty of merchantability or fitness, nor is protection from any law or patent to be
inferred. All patent and trademark rights are reserved.
DESCRIPTION
909-546-1160
hawkeyesales@hawkeyeind.com
PO BOX 415,
BLOOMINGTON, CA 92316
WWW.HAWKEYEIND.COM
FEATURES
HIGH GLOSS
Transfers a brilliant gloss to
tooling gelcoat to eliminate mold
sanding.
HIGH HDT
Up to 300
F (150 C)
EASY APPLICATION
Sprays easily through
HVLP
spray guns.
RESISTS FISHEYES
Unique additives
reduce the risk
of fisheyes,
pinholes and surface
defects.
SMOOTH FINISH
Minimal orange peel.
COLOR OPTIONS
Black (1902-045)
Orange (1908- 045)
Red (1910- 045)
White (1914- 045)
Clear (1904-045)
REVISED APRIL 2024
DURATEC CLEAR VINYL
ESTER HI-GLOSS TOPCOAT
APPLICATION GUIDE | PRODUCT #1904-045
The following use instructions are broad to address multiple applications. We recommend testing for product
compatability with your process. Please contact our Tech Team at (909) 546-1160 with any questions.
PLEASE NOTE
WWW.HAWKEYEIND.COM 909-546-1160 HAWKEYESALES@HAWK
EYEIND.COM PO BOX 415, BLOOMINGTON, CA 92316
Liability/warranty statement: Our products are intended for sale to industrial and commercial customers. We request that customers inspect and test our products before use and satisfy
themselves as to contents and suitability. All claim requests must be made in writing and are subject to review, including storage temperature verification and retain evaluations. The
exclusive remedy for all proven claims is replacement of our materials. In no event shall we be liable for special, incidental or consequential damages, including damages caused in transit
(exworks terms). Nothing herein shall constitute a warranty, expressed or implied, including any warranty of merchantability or fitness, nor is protection from any law or patent to be
inferred. All patent and trademark rights are reserved.www.hawkeyeind.com
Prepare & Catalyze
T
emperature should be at least 64 F for both the product and the part.
Mix with either a paint shaker or a drill-mounted mixer. A paint stir stick will not be enough to mix up.
The primer should be sanded with 220 grit, and wiped down with an acetone damped rag. Do not use
tack clothes.
Catalyze the Duratec at 2.0 % by weight with a low hydrogen peroxide MEKP, like Norox 925H
Additional solvent is not needed for most spray guns. If thinning is required, we suggest the use of
Duratec 39UCE Reducer.
IN-MOLD USE: Vinyl Ester Hi-Gloss Topcoat can be sprayed in mold, but equipment and technique will need to be
adjusted in comparison to tooling gelcoat application in order to support the lower-viscosity Vinyl Ester Hi-Gloss
Topcoat. We suggest use of an HVLP gun over a dump-gun and use of wax mold release agent like TR108 or honey
wax rather than or in conjunction with semi-perm release agents. Wax allows the proper surface tension essential for
the product to level and flow across the in-mold surface. If you are experiencing severe fisheyes when applying in-
mold, it is likely the semi-perm release agent is preventing the necessary surface tension.
Apply
Duratec Vinyl Ester Hi-Gloss Topcoat should be applied by spraying. We recommend an
HVLP air-assisted spray
guns or with a gelcoat application system.
A 1.8 -2.2 mm tip is recommended (depending on part size). Use 34-40 psi air pressure (at the gun). Adjust
the needle and fan to provide the proper spray.
The first coat should be a light dust coat. The dust coating does not completely cover the surface. Wait at
least two minutes, and apply another light coat. After two additional minutes, begin build coats of 4-5 per
pass, waiting 2 minutes or more between passes.
Apply at least 18 mils for an even and complete cure. Recoat before the topcoat has set up and lost it s tack.
If the topcoat cures completely, wait at least eight hours, sand, and recoat. Wait at least eight hours from the
start of sanding before polishing or topcoating.
DURATEC CLEAR VINYL
ESTER HI-GLOSS TOPCOAT
TROUBLESHOOTING | PRODUCT #1904-045
Problem Cause Solution
Alligatoring
Not enough catalyst used.
Substrate/product incompatibility or
chemical reaction.
Check for proper catalyst levels.
Expose surface to higher temperature
before spraying when ambient temp
is below 64 F, 18 C.
Product sprayed on cold surface.
Check compatibility of surface of product.
Blisters
Substrate not cured, gassing
underneath product.
Completely cure putties, pastes and
compounds before applying product.
Cracking Product sprayed too thickly, too fast.
Increase the number of passes, adding dwell time between coats.
Dimples (Craters)
Film build up too rapid, solvent trapped in product.
Increase the number of passes to achieve desired thickness. Allow for ash o between passes.
Fisheyes
Substrate contaminated.
Do not use a tack rag . Ensure rag does
not leave contaminant on surface.
Spray in a clean area to minimize airborne
dust, water, waxes, and/or silicones.
Spray with dry fltered air.
Contamination in the air.
Contamination in the line.
Orange Peel
Spray equipment set up incorrectly.
Spray pressure incorrect.
Pot pressure incorrect.
Follow the instructions for equipment
set up.
Set pressure at 34-40 psi.
Set pressure at 10-12 psi.
Pattern surface
sticks to mold
upon release
Pinholes
Porosity
Improper release preparation.
Follow manufacturer s instructions
when applying release materials.
Primer not fully cured before
compounding and polishing.
Excess gel time for tooling gel coat.
Substrate porosity.
Fill porous areas with product using
squeegee, brush or roller before spraying.
Follow instructions in the application
guide for pattern surfacing.
Follow manufacturer s recs for gel time
Acetone used as thinner.
Spray pressure too high.
Spray orifce too small.
Reduce pressure to 34-40 psi.
Use larger orifce.
Use slower solvent such as MEK or
Duratec Reducer
See the Liability and Warranty Statement on Page 1
by | Sep 27, 2025
PRODUCT PROPERTIES
All time calculations are based on temperatures of 77 F, 25 C.
Lab tested with BPO creme hardener.
Viscosity
As measured on a Brookfield
Viscometer Model RVF, Spindle #5
at 2.5 rpm
350,
000-400,000 cps
Thixotropic Index n/a
Gel Time
Sample catalyzed at 3% with BPO
3-8 minutes
Weight per gallon 10.7 lbs.
The Duratec Vinyl Ester Putty is high quality, BPO catalyzed
putty, for repairing polyester, vinyl ester, and most epoxy
composites molds.
FEATURES
QUICK CURE
Catalyzes quickly with the
included BPO cr me hardener.
Surfaces are ready to sand in 20-
30 minutes.
HIG H BUILD
The putty can be troweled to
inch with each application. Build thicker by repeating application.
LOW POROSITY
Strengthen repairs by reducing air
porosity, allowing a solid, firm repair surface.
HIG H HEAT DISTORTION
An HDT of 300 F (150 C) resists thermal breakdown due to exposure to high exothermic or mold temperatures.
QU ALITY CONTROL
Formulated to meet consistent standards, ensuring material for quality repairs each time.
DURATEC ORANGE
MOLD REPAIR PUTTY
PRODUCT # 1808-007
SAFETY & HANDLING
Duratec Vinyl Ester Repair Putty is extremely flammable. Do not apply near
sparks, open flames or heat. Keep area ventilated. Do not smoke. Avoid continuous
breathing of vapor. Duratec Vinyl Ester Repair Putty contains ingredients which
could be harmful if mishandled. Contact with skin and eyes should be avoided and
necessary protective equipment and clothing should be worn. Individuals should
wash with soap and water before eating or drinking. All containers should be
properly labeled to prevent accidental ingestion or improper disposal. Individuals
should reseal any partly used material back in the container. Store under cool, dry
conditions and away from open flames and high temperatures.
For more detailed instructions on storage, please see the MSDS sheet.
DESCRIPTION
909-546-1160
hawkeyesales@hawkeyeind.com
PO BOX 415,
BLOOMINGTON, CA 92316
WWW.DURATEC1.COM
COLOR OPTIONS
Black ( 1802-007)
Untinted (1804- 007)
White (18 14-007)
FAST, EASY
S
OLUTION
TO M
OLD
MARKS &
P
ART
REPAIR!
DURATEC ORANGE
VINYL
ESTER PUTTY
AP
PLIC ATION GUIDE | PR ODUC T #1808-007
The following use instructions are broad to address multiple applications. We recommend testing for product
compatability with your process. Please contact our Tech Team at (909) 546-1160 with any questions.
PLEASE NOTE
Prepare
The repair surface should be clean, dry, and free from oil, grease, wax or other contaminants. The
laminate must be structurally sound. If the laminate has a crack, a repair will eventually crack in the same
place.
Ambient temperature should be excess of 68 F (20 C) to ensure a rapid and complete cure.
(1)Sand repair area with 80 grit. Use an angle grinder to bevel the edge of the gelcoat, avoiding an
abrupt edge. Grind down to the laminate to assure a great bond. *For repairs larger than a dime, drill
holes using a 1/8″ drill bit into the laminate at an angle.
(2)Wipe the area until it is free of dust. Wash epoxy laminate with water. Wipe down polyester and vinyl
ester with laminate.
(3)Apply two layers
of masking tape around the area that will be repaired.
(4)Estimate the amount of Mold Repair Putty that will be required. Use a putty knife to move twice that
amount (golf ball size) out of the container and onto cardboard or another smooth, sealed surface.
Catalyze
Catalyze the Mold Repair Putty with the BPO catalyst that is provided. One ounce per quart. The
recommended catalyst amount is 3% by weight – correct measurements ensure correct results. A one-
inch line of catalyst for a golf ball size mound of putty is about right.
Carefully stir the catalyst into the putty, avoid trapping air by folding the putty, moving the putty around
the board until fully
mixed.
Fill & Finish
Fill the repair area, and use the masking tape as a guide to assure the repair is over-filled. Tool in multiple
directions to make sure adhesion to all sides occurs.
Rough sand the repaired area as soon as possible, usually after about an hour. Leave the repair area slight
mounded. (You can use a heat gun to warm the repair and assure a full cure around 120 F.
Sand the mold into the proper shape and surface.
Buff and polish using Aqua Buff compound and polish to bring shine to match mold gloss.
Apply release and return the mold to use.
DURATE
C ORANGE
MOLD REPAIR PUTTY
TROUBLESHOOTING | PRODUC
T #180
8-007
Problem Cause Solution
Cured putty
not glossy
Ambient temperature too cold.
Apply in 65 F (18 C) or warmer temperatures.
Cool putty prior to catalyzing.
Ambient temperature too warm.Putty gelstoo quick
BPO catalyst separated in the tube.
Start with new putty and weigh out
catalyst for accuracy. (3% by weight).
Too much catalyst used.
Massage BPO in tube prior to
catalyzing.
Putty under cured
Puttyjelly-like
Too little catalyst used.
Start with new putty and weigh out
catalyst for accuracy. (3% by weight).
Ambient temperature too cold. Apply in 65 F (18 C) or warmer
temperatures.
by | Sep 27, 2025
PRODUCT PROPERTIES
All time calculations are based on temperatures of 77 F, 25 C.
Lab tested with BPO creme hardener.
Viscosity
As measured on a Brookfield
Viscometer Model RVF, Spindle #5
at 2.5 rpm
350,
000-400,000 cps
Thixotropic Index n/a
Gel Time
Sample catalyzed at 3% with BPO
3-8 minutes
Weight per gallon 10.7 lbs.
The Duratec Vinyl Ester Putty is high quality, BPO catalyzed
putty, for repairing polyester, vinyl ester, and most epoxy
composites molds.
FEATURES
QUICK CURE
Catalyzes quickly with the
included BPO cr me hardener.
Surfaces are ready to sand in 20-
30 minutes.
HIG H BUILD
The putty can be troweled to
inch with each application. Build thicker by repeating application.
LOW POROSITY
Strengthen repairs by reducing air
porosity, allowing a solid, firm repair surface.
HIG H HEAT DISTORTION
An HDT of 300 F (150 C) resists thermal breakdown due to exposure to high exothermic or mold temperatures.
QU ALITY CONTROL
Formulated to meet consistent standards, ensuring material for quality repairs each time.
DURATEC ORANGE
MOLD REPAIR PUTTY
PRODUCT # 1808-007
SAFETY & HANDLING
Duratec Vinyl Ester Repair Putty is extremely flammable. Do not apply near
sparks, open flames or heat. Keep area ventilated. Do not smoke. Avoid continuous
breathing of vapor. Duratec Vinyl Ester Repair Putty contains ingredients which
could be harmful if mishandled. Contact with skin and eyes should be avoided and
necessary protective equipment and clothing should be worn. Individuals should
wash with soap and water before eating or drinking. All containers should be
properly labeled to prevent accidental ingestion or improper disposal. Individuals
should reseal any partly used material back in the container. Store under cool, dry
conditions and away from open flames and high temperatures.
For more detailed instructions on storage, please see the MSDS sheet.
DESCRIPTION
909-546-1160
hawkeyesales@hawkeyeind.com
PO BOX 415,
BLOOMINGTON, CA 92316
WWW.DURATEC1.COM
COLOR OPTIONS
Black ( 1802-007)
Untinted (1804- 007)
White (18 14-007)
FAST, EASY
S
OLUTION
TO M
OLD
MARKS &
P
ART
REPAIR!
DURATEC ORANGE
VINYL
ESTER PUTTY
AP
PLIC ATION GUIDE | PR ODUC T #1808-007
The following use instructions are broad to address multiple applications. We recommend testing for product
compatability with your process. Please contact our Tech Team at (909) 546-1160 with any questions.
PLEASE NOTE
Prepare
The repair surface should be clean, dry, and free from oil, grease, wax or other contaminants. The
laminate must be structurally sound. If the laminate has a crack, a repair will eventually crack in the same
place.
Ambient temperature should be excess of 68 F (20 C) to ensure a rapid and complete cure.
(1)Sand repair area with 80 grit. Use an angle grinder to bevel the edge of the gelcoat, avoiding an
abrupt edge. Grind down to the laminate to assure a great bond. *For repairs larger than a dime, drill
holes using a 1/8″ drill bit into the laminate at an angle.
(2)Wipe the area until it is free of dust. Wash epoxy laminate with water. Wipe down polyester and vinyl
ester with laminate.
(3)Apply two layers
of masking tape around the area that will be repaired.
(4)Estimate the amount of Mold Repair Putty that will be required. Use a putty knife to move twice that
amount (golf ball size) out of the container and onto cardboard or another smooth, sealed surface.
Catalyze
Catalyze the Mold Repair Putty with the BPO catalyst that is provided. One ounce per quart. The
recommended catalyst amount is 3% by weight – correct measurements ensure correct results. A one-
inch line of catalyst for a golf ball size mound of putty is about right.
Carefully stir the catalyst into the putty, avoid trapping air by folding the putty, moving the putty around
the board until fully
mixed.
Fill & Finish
Fill the repair area, and use the masking tape as a guide to assure the repair is over-filled. Tool in multiple
directions to make sure adhesion to all sides occurs.
Rough sand the repaired area as soon as possible, usually after about an hour. Leave the repair area slight
mounded. (You can use a heat gun to warm the repair and assure a full cure around 120 F.
Sand the mold into the proper shape and surface.
Buff and polish using Aqua Buff compound and polish to bring shine to match mold gloss.
Apply release and return the mold to use.
DURATE
C ORANGE
MOLD REPAIR PUTTY
TROUBLESHOOTING | PRODUC
T #180
8-007
Problem Cause Solution
Cured putty
not glossy
Ambient temperature too cold.
Apply in 65 F (18 C) or warmer temperatures.
Cool putty prior to catalyzing.
Ambient temperature too warm.Putty gelstoo quick
BPO catalyst separated in the tube.
Start with new putty and weigh out
catalyst for accuracy. (3% by weight).
Too much catalyst used.
Massage BPO in tube prior to
catalyzing.
Putty under cured
Puttyjelly-like
Too little catalyst used.
Start with new putty and weigh out
catalyst for accuracy. (3% by weight).
Ambient temperature too cold. Apply in 65 F (18 C) or warmer
temperatures.
by | Sep 27, 2025
PRODUCT PROPERTIES
All time calculations are based on temperatures of 77 F, 25 C.
Lab tested with BPO cre
me hardener.
Viscosity
As measured on a Brookfield
Viscometer Model RVF, Spindle #5
at 2.5 rpm
350,000-480,000 cps
Thixotropic Index n/a
Gel Time
Sample catalyzed at 3% with BPO
3-8 minutes
Weight per gallon 10.7 lbs.
The Duratec Vinyl Ester Putty is high quality, BPO catalyzed
putty, for repairing polyester, vinyl ester, and most epoxy
composites molds.
FEATURES
QUICK CURE
Catalyzes quickly with the
included BPO cr me hardener.
Surfaces are ready to sand in 20-
30 minutes!
HIGH BUILD
The putty can be troweled to inch with each application. Build thicker by repeating application.
LOW POROSITY
Strengthen repairs by reducing air porosity, allowing a solid, firm repair surface.
HIGH HEAT DISTORTION
An HDT of 300 F (150 C) resists thermal breakdown due to exposure to high exothermic or mold temperatures.
QUALITY CONTROL
Formulated to meet consistent standards, ensuring material for quality repairs each time.
DURATEC UNTINTED
MOLD REPAIR PUTTY
PRODUCT # 1804-007
SAFETY & HANDLING
Duratec Vinyl Ester Repair Putty is extremely flammable. Do not apply near sparks, open flames or heat. Keep
area ventilated. Do not smoke. Avoid continuous breathing of vapor. Du
ratec Vinyl Ester Repair Putty contains
ingredients which could
be harmful if mishandled. Contact with skin and eyes should be avoided and necessary
protective equipment and clothing should be worn. Individuals should wash with soap and water before eating or
drinking. All containers should be properly labeled to prevent accidental ingestion or improper disposal.
Individuals should reseal any partly used material back in the container. Store under cool, dry conditions and
away from open flames and high temperatures.
Liability/warranty statement: Our products are intended for sale to industrial and commercial customers. We
request that customers inspect and test our products before use and satisfy themselves as to contents and
suitability. All claim requests must be made in writing and are subject to review, including storage temperature
verification and retain evaluations. The exclusive remedy for all proven claims is replacement of our materials. In
no event shall we be liable for special, incidental or consequential damages, including damages caused in transit
(exworks terms). Nothing herein shall constitute a warranty, expressed or implied, including any warranty of
merchantability or fitness, nor is protection from any law or patent to be inferred. All patent and trademark rights
are reserved.
For more detailed instructions o n
storage, please see the MSDS sheet.
DESCRIPTION
909-546-1160
hawkeyesales@hawkeyeind.com
PO BOX 415,
BLOOMINGTON, CA 92316
WWW.HAWKEYEIND.COM
COLOR OPTIONS
Black (1802-007)
Orange (1808- 007)
White (1814- 007)
FAST, EASY
SOLUTION
TO MOLD
MARKS
&
PART
REPAIR!
REVISED FEBRUARY 2023
DURATEC UNTINTED
VINYL ESTER PUTTY
APPLIC ATI
ON GUIDE | PR O DUC T #1804- 007
The following use instructions are broad to address multiple applications. We recommend testing for product
compatability with your process. Please contact our Tech Team at (909) 546-1160 with any questions.
PLEASE NOTE
Prepare
The repair surface should be clean, dry, and free from oil, grease, wax or other contaminants. The
laminate must be structurally sound. If the laminate has a crack, a repair will eventually crack in the same
place.
Ambient temperature should be excess of 68 F (20 C) to ensure a rapid and complete cure.
(1)Sand repair area with 80 grit. Use an angle grinder to bevel the edge of the gelcoat, avoiding an
abrupt edge. Grind down to the laminate to assure a great bond. *For repairs larger than a dime, drill
holes using a 1/8″ drill bit into the laminate at an angle.
(2)Wipe the area until it is free of dust using a clean rag. If working with epoxy, wipe away dust and then
water wash surface. Allow to fully dry before proceeding.
(3)Apply two layers of masking tape around the area that will be repaired.
(4)Estimate the amount of Mold Repair Putty that will be required. Use a putty knife to move twice that
amount (golf ball size) out of the container and onto cardboard or another smooth, sealed surface.
Catalyze
Catalyze the Mold Repair Putty with the BPO catalyst provided. The recommended catalyst amount is
3% by weight – correct measurements ensure correct results. A one-inch line of catalyst for a golf ball size
mound of putty is about right. (One-ounce of BPO is provided per quart of Duratec VE putty.)
Carefully stir the catalyst into the putty, avoid trapping air by folding the putty, moving the putty around
the board until fully
mixed.
Fill & Finish
Fill the repair area, and use the masking tape as a guide to assure the repair is over-filled. Tool in multiple
directions to make sure adhesion to all sides occurs.
Rough sand the repaired area as soon as possible, usually after about an hour. Leave the repair area slight
mounded. (You can use a heat gun to warm the repair and assure a full cure around 120 F.
Sand the mold into the proper shape and surface.
Buff and polish using Aqua Buff compound and polish to bring shine to match mold gloss.
Apply release and return the mold to use.
Please see Liability/Warranty Statement on Page 1
DURATEC UNTINTED
MOLD REPAIR PUTTY
TROUBLESHOOTING | PRODUC T #1
80
4-007
Problem Cause Solution
Cured putty
not glossy
Ambient temperature too cold.
Apply in 68 F (20 C) or warmer temperatures.
Cool putty prior to catalyzing.
Ambient temperature too warm.Putty gelstoo quick
BPO catalyst separated in the tube.
Start with new putty and weigh out
catalyst for accuracy. (3% by weight).
Too much catalyst used.
Massage BPO in tube prior to
catalyzing.
Putty under cured
Puttyjelly-like
Too little catalyst used.
Start with new putty and weigh out
catalyst for accuracy. (3% by weight).
Ambient temperature too cold. Apply in 68 F (20 C) or warmer
temperatures.
Please see Liability/Warranty Statement on Page 1
by | Sep 27, 2025
PRODUCT PROPERTIES
All time calculations are based on temperatures of 77 F,
25 C.
Lab tested with BPO creme hardener.
Viscosity
As measured on a Brookfield
Viscometer Model RVF, Spindle #5
at 2.5 rpm
3
50,000-480,000 cps
Thixotropic Index n/a
Gel Time
Sample catalyzed at 3%
with BPO
3-8 minutes
Weight per gallon 10.7 l .
The Duratec Vinyl Ester Putty is high quality, BPO catalyzed
putty, for repairing polyester, vinyl ester, and most epoxy
composites molds.
FEATURES
QUICK CURE
Catalyzes quickly with t
he
included BPO cr me hardener.
Surfaces are ready to sand in 20-
30 minutes!
HIGH BUILD
The putty can be troweled to
inch with each application. Buil
d
thicker by repeating application.
LOW POROSITY
Strengthen repairs by reducing air
porosity, allowing a solid, firm
repair surface.
HIGH HEAT DISTORTIO N
An HDT of 300 F (150 C) resists
thermal breakdown due t
o
exposure to high exothermic or
mold temperatures. Q UALITY CONTROL
Formulated to meet consistent standards, ensuring material for quality repairs each time.
DURATEC UNTINTED
MOLD REPAIR PUTTY
PRODUCT # 1804-007
SAFETY & HANDLING
Duratec Vinyl Ester Repair Putty is extremely flammable. Do not apply near
sparks, open flames or heat. Keep area ventilated. Do not smoke. Avoid continuous
breathing of vapor. Duratec Vinyl Ester Repair Putty contains ingredients which
could be harmful if mishandled. Contact with skin and eyes should be avoided and
necessary protective equipment and clothing should be worn. Individuals should
wash with soap and water before eating or drinking. All containers should be
properly labeled to prevent accidental ingestion or improper disposal. Individuals
should reseal any partly used material back in the container. Store under cool, dry
conditions and away from open flames and high temperatures.
For more detailed instructions on storage, please see the MSDS sheet.
DESCRIPTION
909-546-1160
hawkeyesales@hawkeyeind.com
PO BOX 415,
BLOOMINGTON, CA 92316
WWW.DURATEC1.COM
COLOR OPTIONS
Black ( 1802-007)
Orange (1808- 007)
White (1814- 007)
FAST, EASY
SOLUTION TO
MOLD MARKS
& PART
REPAIR!
DURATE
C UNTINTED
VINYL ESTER PUTTY
AP
PLIC ATION GUIDE | PR O DUC T #1804- 007
The following use instructions are broad to address multiple applications. We recommend testing for product
compatability with your process. Please contact our Tech Team at (909) 546-1160 with any questions.
PLEASE NOTE
Prepare
The repair surface should be clean, dry, and free from oil, grease, wax or other contaminants. The
laminate must be structurally sound. If the laminate has a crack, a repair will eventually crack in the same
place.
Ambient temperature should be excess of 68 F (20 C) to ensure a rapid and complete cure.
(1) Sand repair area with 80 grit. Use an angle grinder to bevel the edge of the gelcoat, avoiding an
abrupt edge. Grind down to the laminate to assure a great bond. *For repairs larger than a dime, drill
holes using a 1/8″ drill bit into the laminate at an angle.
(2) Wipe the area until it is free of dust. Wash epoxy laminate with water. Wipe down polyester and vinyl
ester with laminate.
(3) Apply two layer of masking tape around the area that will be repaired.
(4) Estimate the amount of Mold Repair Putty that will be required. Use a putty knife to move twice that
amount (golf ball size) out of the container and onto cardboard or another smooth, sealed surface.
Catalyze
Catalyze the Mold Repair Putty with the BPO catalyst that is provided. One ounce per quart. The
recommended catalyst amount is 3% by weight – correct measurements ensure correct results. A one-
inch line of catalyst for a golf ball size mound of putty is about right.
Carefully stir the catalyst into the putty, avoid trapping air by folding the putty, moving the putty around
the board until full mixed.
Fill & Finish
Fill the repair area, and use the masking tape as a guide to assure the repair is over-filled. Tool in multiple
directions to make sure adhesion to all sides occurs.
Rough sand the repaired area as soon as possible, usually after about an hour. Leave the repair area slight
mounded. (You can use a heat gun to warm the repair and assure a full cure around 120 F.
Sand the mold into the proper shape and surface.
Buff and polish using Aqua Buff compound and polish to bring shine to match mold gloss.
Apply release and return the mold to use.
DURATE
C UNTINTED
MOLD REPAIR PUTTY
TROUBLESHOOTING | PRODUC T #1
80
4-007
Problem Cause Solution
Cured putty
not glossy
Ambient temperature too cold.
Apply in 65 F (18 C) or warmer temperatures.
Cool putty prior to catalyzing.
Ambient temperature too warm.Putty gelstoo quick
BPO catalyst separated in the tube.
Start with new putty and weigh out
catalyst for accuracy. (3% by weight).
Too much catalyst used.
Massage BPO in tube prior to
catalyzing.
Putty under cured
Puttyjelly-like
Too little catalyst used.
Start with new putty and weigh out
catalyst for accuracy. (3% by weight).
Ambient temperature too cold. Apply in 65 F (18 C) or warmer
temperatures.
by | Sep 27, 2025
PRODUCT PROPERTIES
All time calculations are based on temperatures of 77 F,
25 C.
Lab tested with BPO creme hardener.
Viscosity
As measured on a Brookfield
Viscometer Model RVF, Spindle #5
at 2.5 rpm
3
50,000-480,000 cps
Thixotropic Index n/a
Gel Time
Sample catalyzed at 3%
with BPO
3-8 minutes
Weight per gallon 10.7 l .
The Duratec Vinyl Ester Putty is high quality, BPO catalyzed
putty, for repairing polyester, vinyl ester, and most epoxy
composites molds.
FEATURES
QUICK CURE
Catalyzes quickly with t
he
included BPO cr me hardener.
Surfaces are ready to sand in 20-
30 minutes!
HIGH BUILD
The putty can be troweled to
inch with each application. Buil
d
thicker by repeating application.
LOW POROSITY
Strengthen repairs by reducing air
porosity, allowing a solid, firm
repair surface.
HIGH HEAT DISTORTIO N
An HDT of 300 F (150 C) resists
thermal breakdown due t
o
exposure to high exothermic or
mold temperatures. Q UALITY CONTROL
Formulated to meet consistent standards, ensuring material for quality repairs each time.
DURATEC UNTINTED
MOLD REPAIR PUTTY
PRODUCT # 1804-007
SAFETY & HANDLING
Duratec Vinyl Ester Repair Putty is extremely flammable. Do not apply near
sparks, open flames or heat. Keep area ventilated. Do not smoke. Avoid continuous
breathing of vapor. Duratec Vinyl Ester Repair Putty contains ingredients which
could be harmful if mishandled. Contact with skin and eyes should be avoided and
necessary protective equipment and clothing should be worn. Individuals should
wash with soap and water before eating or drinking. All containers should be
properly labeled to prevent accidental ingestion or improper disposal. Individuals
should reseal any partly used material back in the container. Store under cool, dry
conditions and away from open flames and high temperatures.
For more detailed instructions on storage, please see the MSDS sheet.
DESCRIPTION
909-546-1160
hawkeyesales@hawkeyeind.com
PO BOX 415,
BLOOMINGTON, CA 92316
WWW.DURATEC1.COM
COLOR OPTIONS
Black ( 1802-007)
Orange (1808- 007)
White (1814- 007)
FAST, EASY
SOLUTION TO
MOLD MARKS
& PART
REPAIR!
DURATE
C UNTINTED
VINYL ESTER PUTTY
AP
PLIC ATION GUIDE | PR O DUC T #1804- 007
The following use instructions are broad to address multiple applications. We recommend testing for product
compatability with your process. Please contact our Tech Team at (909) 546-1160 with any questions.
PLEASE NOTE
Prepare
The repair surface should be clean, dry, and free from oil, grease, wax or other contaminants. The
laminate must be structurally sound. If the laminate has a crack, a repair will eventually crack in the same
place.
Ambient temperature should be excess of 68 F (20 C) to ensure a rapid and complete cure.
(1) Sand repair area with 80 grit. Use an angle grinder to bevel the edge of the gelcoat, avoiding an
abrupt edge. Grind down to the laminate to assure a great bond. *For repairs larger than a dime, drill
holes using a 1/8″ drill bit into the laminate at an angle.
(2) Wipe the area until it is free of dust. Wash epoxy laminate with water. Wipe down polyester and vinyl
ester with laminate.
(3) Apply two layer of masking tape around the area that will be repaired.
(4) Estimate the amount of Mold Repair Putty that will be required. Use a putty knife to move twice that
amount (golf ball size) out of the container and onto cardboard or another smooth, sealed surface.
Catalyze
Catalyze the Mold Repair Putty with the BPO catalyst that is provided. One ounce per quart. The
recommended catalyst amount is 3% by weight – correct measurements ensure correct results. A one-
inch line of catalyst for a golf ball size mound of putty is about right.
Carefully stir the catalyst into the putty, avoid trapping air by folding the putty, moving the putty around
the board until full mixed.
Fill & Finish
Fill the repair area, and use the masking tape as a guide to assure the repair is over-filled. Tool in multiple
directions to make sure adhesion to all sides occurs.
Rough sand the repaired area as soon as possible, usually after about an hour. Leave the repair area slight
mounded. (You can use a heat gun to warm the repair and assure a full cure around 120 F.
Sand the mold into the proper shape and surface.
Buff and polish using Aqua Buff compound and polish to bring shine to match mold gloss.
Apply release and return the mold to use.
DURATE
C UNTINTED
MOLD REPAIR PUTTY
TROUBLESHOOTING | PRODUC T #1
80
4-007
Problem Cause Solution
Cured putty
not glossy
Ambient temperature too cold.
Apply in 65 F (18 C) or warmer temperatures.
Cool putty prior to catalyzing.
Ambient temperature too warm.Putty gelstoo quick
BPO catalyst separated in the tube.
Start with new putty and weigh out
catalyst for accuracy. (3% by weight).
Too much catalyst used.
Massage BPO in tube prior to
catalyzing.
Putty under cured
Puttyjelly-like
Too little catalyst used.
Start with new putty and weigh out
catalyst for accuracy. (3% by weight).
Ambient temperature too cold. Apply in 65 F (18 C) or warmer
temperatures.
by | Sep 27, 2025
PRODUCT PROPERTIES
All time calculations are based on temperatures of 77 F, 25 C.
La
b tested with BPO creme hardener.
Viscosity
As measured on a Brookfield
Viscometer Model RVF, Spindle #5
at 2.5 rpm
350,
000-400,000 cps
Thixotropic Index n/a
Gel Time
Sample catalyzed at 3% with
BPO
3-8 minutes
Weight per gallon 10.8 lbs.
The Duratec Vinyl Ester Putty is high quality, BPO catalyzed
putty, for repairing polyester, vinyl ester, and most epoxy
composites molds.
DURATEC BLACK
MOLD REPAIR PUTTY
PRODUCT # 1802-007
SAFETY & HANDLING
Duratec Vinyl Ester Repair Putty is extremely flammable. Do not apply near
sparks, open flames or heat. Keep area ventilated. Do not smoke. Avoid continuous
breathing of vapor. Duratec Vinyl Ester Repair Putty contains ingredients which
could be harmful if mishandled. Contact with skin and eyes should be avoided and
necessary protective equipment and clothing should be worn. Individuals should
wash with soap and water before eating or drinking. All containers should be
properly labeled to prevent accidental ingestion or improper disposal. Individuals
should reseal any partly used material back in the container. Store under cool, dry
conditions and away from open flames and high temperatures.
For more detailed instructions on storage, please see the MSDS sheet.
DESCRIPTION
909-546-1160
hawkeyesales@hawkeyeind.com
PO BOX 415,
BLOOMINGTON, CA 92316
WWW.DURATEC1.COM
COLOR OPTIONS
Untinted ( 1804-007)
Orange (1808- 007)
White (1814- 007)
FAST, EASY
S
OLUTION
TO M
OLD
MARKS &
P
ART
REPAIR!
FEATURES
QUICK CURE
Catalyzes quickly with the
included BPO cr me hardener.
Surfaces are ready to sand in 20-
30 minutes!
HIG H BUILD
The putty can be troweled to inch with each application. Build thicker by repeating application.
LOW POROSITY
Strengthen repairs by reducing air
porosity, allowing a solid, firm repair surface.
HIGH HEAT DISTORTION
An HDT of 300 F (150 C) resists thermal breakdown due to exposure to high exothermic or mold temperatures.
QU ALITY CONTROL
Formulated to meet consistent standards, ensuring material for quality repairs each time.
DURATEC BLACK
VINYL
ESTER PUTTY
AP
PLIC ATION GUIDE | PR ODUC T #1 802-007
The following use instructions are broad to address multiple applications. We recommend testing for product
compatability with your process. Please contact our Tech Team at (909) 546-1160 with any questions.
PLEASE NOTE
Prepare
The repair surface should be clean, dry, and free from oil, grease, wax or other contaminants. The
laminate must be structurally sound. If the laminate has a crack, a repair will eventually crack in the same
place.
Ambient temperature should be excess of 68 F (20 C) to ensure a rapid and complete cure.
(1)Sand repair area with 80 grit. Use an angle grinder to bevel the edge of the gelcoat, avoiding an
abrupt edge. Grind down to the laminate to assure a great bond. *For repairs larger than a dime, drill
holes using a 1/8″ drill bit into the laminate at an angle.
(2)Wipe the area until it is free of dust. Wash epoxy laminate with water. Wipe down polyester and vinyl
ester with laminate.
(3)Apply two layers of masking tape around the area that will be repaired.
(4)Estimate the amount of Mold Repair Putty that will be required. Use a putty knife to move twice that
amount (golf ball size) out of the container and onto cardboard or another smooth, sealed surface.
Catalyze
Catalyze the Mold Repair Putty with the BPO catalyst that is provided. One ounce per quart. The
recommended catalyst amount is 3% by weight – correct measurements ensure correct results. A one-
inch line of catalyst for a golf ball size mound of putty is about right.
Carefully stir the catalyst into the putty, avoid trapping air by folding the putty, moving the putty around
the board until fully
mixed.
Fill & Finish
Fill the repair area, and use the masking tape as a guide to assure the repair is over-filled. Tool in multiple
directions to make sure adhesion to all sides occurs.
Rough sand the repaired area as soon as possible, usually after about an hour. Leave the repair area slight
mounded. (You can use a heat gun to warm the repair and assure a full cure around 120 F.
Sand the mold into the proper shape and surface.
Buff and polish using Aqua Buff compound and polish to bring shine to match mold gloss.
Apply release and return the mold to use.
DURATE
C BLACK
MOLD REPAIR PUTTY
TROUBLESHOOTING |
PRODUC T #180
2-007
Problem Cause Solution
Cured putty
not glossy
Ambient temperature too cold.
Apply in 65 F (18 C) or warmer temperatures.
Cool putty prior to catalyzing.
Ambient temperature too warm.Putty gelstoo quick
BPO catalyst separated in the tube.
Start with new putty and weigh out
catalyst for accuracy. (3% by weight).
Too much catalyst used.
Massage BPO in tube prior to
catalyzing.
Putty under cured
Puttyjelly-like
Too little catalyst used.
Start with new putty and weigh out
catalyst for accuracy. (3% by weight).
Ambient temperature too cold. Apply in 65 F (18 C) or warmer
temperatures.
by | Sep 27, 2025
PRODUCT PROPERTIES
All time calculations are based on temperatures of 77 F, 25 C.
La
b tested with BPO creme hardener.
Viscosity
As measured on a Brookfield
Viscometer Model RVF, Spindle #5
at 2.5 rpm
350,
000-400,000 cps
Thixotropic Index n/a
Gel Time
Sample catalyzed at 3% with
BPO
3-8 minutes
Weight per gallon 10.8 lbs.
The Duratec Vinyl Ester Putty is high quality, BPO catalyzed
putty, for repairing polyester, vinyl ester, and most epoxy
composites molds.
DURATEC BLACK
MOLD REPAIR PUTTY
PRODUCT # 1802-007
SAFETY & HANDLING
Duratec Vinyl Ester Repair Putty is extremely flammable. Do not apply near
sparks, open flames or heat. Keep area ventilated. Do not smoke. Avoid continuous
breathing of vapor. Duratec Vinyl Ester Repair Putty contains ingredients which
could be harmful if mishandled. Contact with skin and eyes should be avoided and
necessary protective equipment and clothing should be worn. Individuals should
wash with soap and water before eating or drinking. All containers should be
properly labeled to prevent accidental ingestion or improper disposal. Individuals
should reseal any partly used material back in the container. Store under cool, dry
conditions and away from open flames and high temperatures.
For more detailed instructions on storage, please see the MSDS sheet.
DESCRIPTION
909-546-1160
hawkeyesales@hawkeyeind.com
PO BOX 415,
BLOOMINGTON, CA 92316
WWW.DURATEC1.COM
COLOR OPTIONS
Untinted ( 1804-007)
Orange (1808- 007)
White (1814- 007)
FAST, EASY
S
OLUTION
TO M
OLD
MARKS &
P
ART
REPAIR!
FEATURES
QUICK CURE
Catalyzes quickly with the
included BPO cr me hardener.
Surfaces are ready to sand in 20-
30 minutes!
HIG H BUILD
The putty can be troweled to inch with each application. Build thicker by repeating application.
LOW POROSITY
Strengthen repairs by reducing air
porosity, allowing a solid, firm repair surface.
HIGH HEAT DISTORTION
An HDT of 300 F (150 C) resists thermal breakdown due to exposure to high exothermic or mold temperatures.
QU ALITY CONTROL
Formulated to meet consistent standards, ensuring material for quality repairs each time.
DURATEC BLACK
VINYL
ESTER PUTTY
AP
PLIC ATION GUIDE | PR ODUC T #1 802-007
The following use instructions are broad to address multiple applications. We recommend testing for product
compatability with your process. Please contact our Tech Team at (909) 546-1160 with any questions.
PLEASE NOTE
Prepare
The repair surface should be clean, dry, and free from oil, grease, wax or other contaminants. The
laminate must be structurally sound. If the laminate has a crack, a repair will eventually crack in the same
place.
Ambient temperature should be excess of 68 F (20 C) to ensure a rapid and complete cure.
(1)Sand repair area with 80 grit. Use an angle grinder to bevel the edge of the gelcoat, avoiding an
abrupt edge. Grind down to the laminate to assure a great bond. *For repairs larger than a dime, drill
holes using a 1/8″ drill bit into the laminate at an angle.
(2)Wipe the area until it is free of dust. Wash epoxy laminate with water. Wipe down polyester and vinyl
ester with laminate.
(3)Apply two layers of masking tape around the area that will be repaired.
(4)Estimate the amount of Mold Repair Putty that will be required. Use a putty knife to move twice that
amount (golf ball size) out of the container and onto cardboard or another smooth, sealed surface.
Catalyze
Catalyze the Mold Repair Putty with the BPO catalyst that is provided. One ounce per quart. The
recommended catalyst amount is 3% by weight – correct measurements ensure correct results. A one-
inch line of catalyst for a golf ball size mound of putty is about right.
Carefully stir the catalyst into the putty, avoid trapping air by folding the putty, moving the putty around
the board until fully
mixed.
Fill & Finish
Fill the repair area, and use the masking tape as a guide to assure the repair is over-filled. Tool in multiple
directions to make sure adhesion to all sides occurs.
Rough sand the repaired area as soon as possible, usually after about an hour. Leave the repair area slight
mounded. (You can use a heat gun to warm the repair and assure a full cure around 120 F.
Sand the mold into the proper shape and surface.
Buff and polish using Aqua Buff compound and polish to bring shine to match mold gloss.
Apply release and return the mold to use.
DURATE
C BLACK
MOLD REPAIR PUTTY
TROUBLESHOOTING |
PRODUC T #180
2-007
Problem Cause Solution
Cured putty
not glossy
Ambient temperature too cold.
Apply in 65 F (18 C) or warmer temperatures.
Cool putty prior to catalyzing.
Ambient temperature too warm.Putty gelstoo quick
BPO catalyst separated in the tube.
Start with new putty and weigh out
catalyst for accuracy. (3% by weight).
Too much catalyst used.
Massage BPO in tube prior to
catalyzing.
Putty under cured
Puttyjelly-like
Too little catalyst used.
Start with new putty and weigh out
catalyst for accuracy. (3% by weight).
Ambient temperature too cold. Apply in 65 F (18 C) or warmer
temperatures.
by | Sep 27, 2025
Gel Time
Sample b ased on a 100g m ass
catalyzed at 2 % with MEKP
10-16 minutes
Weight per gallon 8.1 lbs/gal
Viscosity
As measured on a Brookfield
Viscometer Model RVF, Spindle #2
at 20 rpm
<100 cps
FEATURES
MULTI-FUNCTIONAL
For woods, veneers, concrete,
and other porous surfaces.
EASY TO
APPLY
Spray, roll,
or brush on as you r
application
sees fit.
RAPID CURING
Surfaces are ready
for topcoats in
one to two hours - some even
faster with no need to wait!
DEEP PE
NETRATION
Low
viscosity allow s sealer to
penetr
ate surfaces for a more
complet
e seal.
HI
GH COMPATIBILITY
Versatile
to work with your
substrate and
your choice in
topcoat lacquers,
urethanes,
polyesters,
vinyl esters, and most
epoxies.
S A FE TY & HANDL I NG
Duratec
Clear Vinyl Ester Sealer is extremely flammable. Do not apply near
sparks, open flames or heat. Keep area ventilated. Do not smoke. Avoid
continuous breathing of vapor. Duratec Clear Vinyl Ester Sealer contains
ingredients which could be harmful if mishandled. Contact with skin and eyes
should be avoided and necessary protective equipment and clothing should be
worn. Individuals should wash with soap and water before eating or drinking. All
containers should be properly labeled to prevent accidental ingestion or improper
disposal. Individuals should reseal any partly used material back in the container.
Store under cool, dry conditions and away from open flames and high
temperatures.
For more detailed
instructions on storage, please see the MSDS sheet.
DURATEC CLEAR
VINYL ESTER SEALER
P ROD UCT # 1800
*
DE S
CRI P TION
Duratec Clear Vinyl Ester Sealer is designed to provide
excellent performance in any situation
requiring high heat
resistance
and/or good corrosion resistance.
Designed to
promote better
adhesions for unsaturated polyester and vinyl
ester coatings.
909-546-1160
hawkeyesales@hawkeyeind.com
PO BOX 415,
BLOOMINGTON, CA 92316
WWW.DURATEC1.COM
SAVE TIME
AND ADD
QUALITY TO
YOUR
SURFACE
PROFILE!
POLYE ST E R
OP T IO N
823 Crystal Clear Sealer
The sealer for processes
with an HDT below 180 F.
PRODUCT PROPERTIES
All time calculations are based on temperatures of 77 F, 25 C
Lab tested with Norox 925 MEKP
*
This product was once labeled as 1800A. The A was removed in 2020 but no changes were made to
t
he product formulation.
DURATEC CLEAR VINYL
ESTER SEALER
AP
PLIC ATION GUIDE | PR ODUC T # 1800
Prepare
T
emperature should be at least 64 F. Low temperatures extend cure time.
Ensure the surface is clean and free of both chemical and environmental contaminants. If needed,
slightly sand the surface with 120-220 grit and then wipe off surface with a clean (not tack) rag.
Mix
the Duratec Clear Vinyl Ester Sealer at a low speed for at least 3 minutes prior to catalyzing.
Catalyze before use using MEKP catalyst at 2% by weight. Norox 925 or 925H have yielded good
results. Due to the rapid gel time, catalyze only the amount that can be applied within 15-18 minutes.
NOTE: Higher temperatures yield a shorter pot life and gel time, while lower temperatures yield a
longer pot life and gel time.
Apply Sealer
Roll, brush, or spray the sealer on. If spraying, apply using air-assisted or airless spray at lowest
practical pressure. Wipe away any excess using a clean white cloth or paper towel. Do not use tack
rag.
Film thickness should be less than 2 mils on the surface.
Topcoating (Urethane, Polyester, Vinyl Esters)
In general, sealer will be ready to topcoat within an hour or two, but may be ready faster depending
on amount of sealer used and ambient temperature.
Sanding the sealer prior to topcoating is not necessary if the time between sealing and topcoating is
less than eight hours. If more than 8 hours have passed, we suggest sanding with 180-200 to provide
mechanical tooth for the bond.
Topcoating (Epoxy)
Adhesion between the Duratec Clear Vinyl Ester Sealer and epoxy is dependent on a mechanical
bond with the epoxy rather than a chemical bond. We advocate for a cure time of at least eight
hours. Abrade the surface with sandpaper (180-220) prior to topcoating with epoxy.
Duratec Clear Vinyl Ester Sealer is not designed for direct exposure to sunlight or other strong
UV sources.
The following use instructions are broad to address multiple applications. We recommend testing for product
compatability with your process. Please contact our Tech Team at (909) 546-1160 with any questions.
PLEASE NOTE
DURATEC CLEAR VINY
L
E
STER SEALER
T
ROUBLESHOOTING | PR ODUC T #1800
Problem Cause Solution
Extended dry
or cure rate
Substrate too dense or hard.
Add up to one quart of acetone per
gallon of sealer.
Failure to totally cureIncompatibility with substrate.
Replace 1800 Sealer with Duratec
Polyurethane Sealer (5604-002
).
Spotty cure
Oily substrate.
Replace 1800 Sealer with Duratec Polyurethane Sealer (5604-002
).
by | Sep 27, 2025
Gel Time
Sample b ased on a 100g m ass
catalyzed at 2 % with MEKP
10-16 minutes
Weight per gallon 8.1 lbs/gal
Viscosity
As measured on a Brookfield
Viscometer Model RVF, Spindle #2
at 20 rpm
<100 cps
FEATURES
MULTI-FUNCTIONAL
For woods, veneers, concrete,
and other porous surfaces.
EASY TO
APPLY
Spray, roll,
or brush on as you r
application
sees fit.
RAPID CURING
Surfaces are ready
for topcoats in
one to two hours - some even
faster with no need to wait!
DEEP PE
NETRATION
Low
viscosity allow s sealer to
penetr
ate surfaces for a more
complet
e seal.
HI
GH COMPATIBILITY
Versatile
to work with your
substrate and
your choice in
topcoat lacquers,
urethanes,
polyesters,
vinyl esters, and most
epoxies.
S A FE TY & HANDL I NG
Duratec
Clear Vinyl Ester Sealer is extremely flammable. Do not apply near
sparks, open flames or heat. Keep area ventilated. Do not smoke. Avoid
continuous breathing of vapor. Duratec Clear Vinyl Ester Sealer contains
ingredients which could be harmful if mishandled. Contact with skin and eyes
should be avoided and necessary protective equipment and clothing should be
worn. Individuals should wash with soap and water before eating or drinking. All
containers should be properly labeled to prevent accidental ingestion or improper
disposal. Individuals should reseal any partly used material back in the container.
Store under cool, dry conditions and away from open flames and high
temperatures.
For more detailed
instructions on storage, please see the MSDS sheet.
DURATEC CLEAR
VINYL ESTER SEALER
P ROD UCT # 1800
*
DE S
CRI P TION
Duratec Clear Vinyl Ester Sealer is designed to provide
excellent performance in any situation
requiring high heat
resistance
and/or good corrosion resistance.
Designed to
promote better
adhesions for unsaturated polyester and vinyl
ester coatings.
909-546-1160
hawkeyesales@hawkeyeind.com
PO BOX 415,
BLOOMINGTON, CA 92316
WWW.DURATEC1.COM
SAVE TIME
AND ADD
QUALITY TO
YOUR
SURFACE
PROFILE!
POLYE ST E R
OP T IO N
823 Crystal Clear Sealer
The sealer for processes
with an HDT below 180 F.
PRODUCT PROPERTIES
All time calculations are based on temperatures of 77 F, 25 C
Lab tested with Norox 925 MEKP
*
This product was once labeled as 1800A. The A was removed in 2020 but no changes were made to
t
he product formulation.
DURATEC CLEAR VINYL
ESTER SEALER
AP
PLIC ATION GUIDE | PR ODUC T # 1800
Prepare
T
emperature should be at least 64 F. Low temperatures extend cure time.
Ensure the surface is clean and free of both chemical and environmental contaminants. If needed,
slightly sand the surface with 120-220 grit and then wipe off surface with a clean (not tack) rag.
Mix
the Duratec Clear Vinyl Ester Sealer at a low speed for at least 3 minutes prior to catalyzing.
Catalyze before use using MEKP catalyst at 2% by weight. Norox 925 or 925H have yielded good
results. Due to the rapid gel time, catalyze only the amount that can be applied within 15-18 minutes.
NOTE: Higher temperatures yield a shorter pot life and gel time, while lower temperatures yield a
longer pot life and gel time.
Apply Sealer
Roll, brush, or spray the sealer on. If spraying, apply using air-assisted or airless spray at lowest
practical pressure. Wipe away any excess using a clean white cloth or paper towel. Do not use tack
rag.
Film thickness should be less than 2 mils on the surface.
Topcoating (Urethane, Polyester, Vinyl Esters)
In general, sealer will be ready to topcoat within an hour or two, but may be ready faster depending
on amount of sealer used and ambient temperature.
Sanding the sealer prior to topcoating is not necessary if the time between sealing and topcoating is
less than eight hours. If more than 8 hours have passed, we suggest sanding with 180-200 to provide
mechanical tooth for the bond.
Topcoating (Epoxy)
Adhesion between the Duratec Clear Vinyl Ester Sealer and epoxy is dependent on a mechanical
bond with the epoxy rather than a chemical bond. We advocate for a cure time of at least eight
hours. Abrade the surface with sandpaper (180-220) prior to topcoating with epoxy.
Duratec Clear Vinyl Ester Sealer is not designed for direct exposure to sunlight or other strong
UV sources.
The following use instructions are broad to address multiple applications. We recommend testing for product
compatability with your process. Please contact our Tech Team at (909) 546-1160 with any questions.
PLEASE NOTE
DURATEC CLEAR VINY
L
E
STER SEALER
T
ROUBLESHOOTING | PR ODUC T #1800
Problem Cause Solution
Extended dry
or cure rate
Substrate too dense or hard.
Add up to one quart of acetone per
gallon of sealer.
Failure to totally cureIncompatibility with substrate.
Replace 1800 Sealer with Duratec
Polyurethane Sealer (5604-002
).
Spotty cure
Oily substrate.
Replace 1800 Sealer with Duratec Polyurethane Sealer (5604-002
).
