A Quality Product from Hawkeye Industries, Inc.
Duratec
904-001 Hi-Gloss Additive
Duratec 904-001 has a 20
year history of successful
use, blended with numerous
gelcoats across North America
and Europe.
A superior product to blend
with Gelcoat to create a
repair coating.
Can be blended with Tooling
gelcoat to reduce porosity
and improve the surface
quality.
Features
Contains Air-cure resins and
additives eliminate the use
of wax and PVA creating a
superior finish.
o Makes gelcoat spray
like paint
o Can be blended 50:50 for
or 25:75 to
flow and surface
needs wax)
Eliminate low-gloss areas
on the edges of repairs the
low-gloss donut often seen in
gelcoat repairs.
Reduce Porosity in tooling
gelcoat. Improves air release
thus preventing porosity.
Better profile: as compared to
un-modified gelcoat or
gelcoat with wax and styrene.
o Easy to spray from HVLP
Guns.
Greatly reduced yellowing:
Gelcoat patched with Styrene
and Wax
Contains special additives to
prevent UV-induced yellowing
and gloss loss.
Faster and Easier Repair:
The air-cure blend created
with Duratec 904-001 and
gelcoat cures fast and hard,
creating a shiny smooth
surface that is easy to sand.
o Faster Repair
o Eliminate the gummy
seen with wax
and styrene
o Prevent the dull surface
seen with wax/gelcoat
blends
Hi-Gloss Additive
904-001
Limited/ 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. 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 rights are reserved. The exclusive remedy for all
proven claims is replacement of our materials and in no event shall we be liable for special, incidental or consequential damages.
P.O.Box
(USA) (Outside
Email: hawkeyesales@hawkeyeind.com .duratec1.com
904-001
Duratec
Hi-Gloss Additive
Physical Properties:
Recommended Use:
Gelcoat Repair
1. A test blend is recommended, as every blend is unique and the cure must be tested and assured.
The cure time of the blend will vary, as every gelcoat is different. Note the cup-gel time.
2. Remove any cracked or damaged gelcoat. Grind out cracks down to the laminate.
3. Repair laminate or assure the laminate is sound.
4. The temperature should be at least 60 F. Low temperatures extend cure times.
5. Sand with 180 grit to a few inches outside the repair area.
a. Bevel the edge of the existing gelcoat.
b. Use a repair putty (like Duratec 1810-013 Marine Fairing Putty) to fill in any low areas
6. Blend One: 1 part (25%) Duratec 904-001 and 3 parts (75%) gelcoat.
a. Catalyze with 2% 50% MEKP catalyst like Norox 925 (about 20 milliliters per quart. Note: the 1:3 blend is
to maximize the hide (opacity). If opacity is not an issue, use Blend Two for all the repairs.
b. Spray 3-4 passes over the repair, building up 12-15 mils. Allow at least two minutes between passes. Do not
allow the Duratec/gelcoat blend to cure beyond the sticky/thumbprint stage between coats .usually about
30 minutes at 77 F when sprayed, faster in the cup.
7. Blend two:
a. 1 part Duratec 904-001 and one part gelcoat. Catalyze with 2% of a 50% MEKP catalyst like Norox 925H.
b. Spray at least 2 passes over the repair, building up a additional 8 mils or more. Be sure to get back onto the
first passes while they are sticky. Cover all the previously coated area. It is possible to feather the edge of the
repaired area with the second blend.
8. Allow to cure completely.
9. Sand with the finest grit that is reasonable for the surface finish. With a good finish starting with 400 grit is possible.
a. The surface must be open for at least 8 hours between initial sanding and polishing. The open time allows for
styrene release and full cure.
10. Sand with progressively finer grits like 400, 600, 800, 1000, Compound and polish with products formulated for
gelcoat like Aqua Buff 1000 and Aqua Buff 2000.
Tooling Gelcoat Upgrade:
Blend 10-25% Duratec 904-001 into the tooling gelcoat to improve the flow and spraying characteristics of tooling gelcoat.
Catalyze with 2% MEKP catalyst (as recommended by the gelcoat supplier)
Revised 02-03-14
Limited/ 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. 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 rights are reserved. The exclusive remedy for all
proven claims is replacement of our materials and in no event shall we be liable for special, incidental or consequential damages.
Data Sheet
Continued
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