by | Sep 27, 2025
Interplastic Corporation makes no warranties regarding any material and/or samples described in this report. All properties
specified above are approximate and may vary from material delivered. Delivered material complies with the certificate of
analysis on each shipment of product. Interplastic Corporation makes no representations of fact regarding the material
except those specified above. Final determination of part or application and the suitability of the material for the use
contemplated is the sole responsibility of the buyer. Our technical sales representatives will assist in developing procedures
to fit individual requirements as a customer accommodation, but all advice is accepted at your risk and should be checked for
suitability to your particular processes and needs. These test data and properties are based on results obtained for a specific
material under the specified test conditions – they are not to be used as specifications and are not warranted as performance
attributes for any product or system.
INTERPLASTIC CORPORATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 2/18
CORVE8440 is a non-promoted, fire retardant, vinyl ester resin. It has an ASTM E84 Tunnel Test flame spread rating of
<75 (Class 2 flame spread) without additives and < 25 (Class 1 flame spread) with the addition of 1.5% antimony trioxide.
FEATURES BENEFITS
Brominated Version of CORVE8300 Very versatile and widely used vinyl ester resin
Highly Corrosion Resistant Resists acid, alkali, and oxidizing chemical environments
Contains 40% Styrene Meets many requirements for low HAP content
Excellent Physical Properties Suitable for tanks, pipe, and process equipment
Non-Promoted Resin System Adjustable for most customer applications
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model LV, #3 Spindle @ 60 rpm, 77 F (25 C), cPs 450-550
100 grams resin @ 77 F (25 C), promoted with 0.20 grams of 12% Cobalt and
0.05 grams N,N-Dimethylaniline, initiated with 1.2% MEKP-925H by volume *
Gel Time, min:sec 16:00-19:00
Gel to Peak Exotherm Time, min:sec 9:30-15:00
Peak Exotherm 315-355 F (157-179 C)
Non-Volatile Content, % 58.5-61.5
Hazardous Air Pollutant (Styrene) Content, % 38.5-41.5
Specific Gravity 1.14-1.17
TYPICAL PROPERTIES
Thickness 1/8 inch (3.2 mm) Casting 1/8 inch (3.2 mm) Laminate
Construction Not Applicable 4 Plies 1.5 oz/ft
2
, 33% Glass Mat
Flexural Strength, ASTM D790 22,000 psi 150 MPa 25,400 psi 175 MPa
Flexural Modulus, ASTM D790 5.6 x 10
5
psi 3,800 MPa 11.0 x 10
5
psi 7,586 MPa
Tensile Strength, ASTM D638 13,000 psi 89 MPa 13,900 psi 85.8 MPa
Tensile Modulus, ASTM D638 5.1 x 10
5
psi 3,500 MPa 12.8 x 10
5
psi 8,828 MPa
Tensile Elongation, ASTM D638 6.4 % 6.4 % 1.4 % 1.4 %
Barcol Hardness, 934-1 gauge, ASTM D2583 34 34 44-48 44-48
Heat Distortion Temperature, ASTM D648 220 F 104 C >400 F >200 C
* Gel time and reactivity will vary due to the type and concentration of Free Radical Initiator (catalyst), shop temperature, humidity, and type of fillers used. In order to meet
your individual needs consult our technical sales representative for assistance. If using methyl ethyl ketone peroxide (MEKP) to gel and cure CoREZYN vinyl ester resins
we recommend only these three brands: Cadox L-50a (Nouryon); Luperox DHD-9 (Arkema); and Norox MEKP-925H (United Initiators). These must be used at the
appropriate percentage and suitable temperature. Contact your Interplastic Corporation representative for assistance.
FLAME TEST PROPERTIES
Thickness 1/8 inch (3.2 mm) Laminate
Construction 4 Plies 1.5 oz/ft
2
, 33% Glass Mat
ASTM E84, Flame Spread 45
ASTM E84, Flame Spread (with 1.5% Antimony Trioxide added to the resin) 15
ASTM E84, Flame Spread (with 3.75 % Nyacol APE 3040 added to the resin) 20
ASTM D635, Horizontal Burn Rate < 1
UL 94 **This is not to imply UL warranty (V-O) (HB < 1 ) (5V Pass)
HLT 15 20
CORVE8440
Fire Retardant Vinyl Ester Resin
Technical Data Sheet
by | Sep 27, 2025
All specifications and properties specified above are approximate. Specifications and properties of material delivered may vary slightly
from those given above. Interplastic Corporation makes no representations of fact regarding the material except those specified above.
No person has any authority to bind Interplastic Corporation to any representation except those specified above. Final determination of
the suitability of the material for the use contemplated is the sole responsibility of the Buyer. Our technical sales representatives will
assist in developing procedures to fit individual requirements, but all advice is accepted at your risk and should be checked for
suitability to your particular processes. These test data and properties are based on results obtained for a specific material under the
specified test conditions. They are not to be used as specifications and are not warranted as performance attributes for any product or
system. Specifications and properties of standard production material may vary slightly from those in this report. Interplastic
Corporation makes no warranties regarding any material and/or samples described in this report unless that representation is provided
to your company in writing by a Technical Director of Interplastic Corporation or one of his or her managers.
INTERPLASTIC CORPORATIO N
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 1/18
CORVE8401 is a promoted, fire retardant, vinyl ester resin. This resin has a flame spread rating of < 25 (Class 1) per
ASTM E84 Tunnel Test without additives. Contact your Interplastic Corporation representative for specific corrosion
recommendations.
FEATURES BENEFITS
Flame Spread Rating < 25 per ASTM E84 No additives to cloud laminates; easy inspections
Highly Corrosion Resistant Resists acid, alkali, and oxidizing chemical environments
Excellent Physical Properties Suitable for tanks, pipe, and process equipment
RELATED PRODUCTS GEL TIME
CORVE8401W 8.5-11.5 Minutes
CORVE8401S 32-40 Minutes
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model LV #3 Spindle @ 60 rpm, 77 F (25 C), cPs 400-600
100 grams resin @ 77 F (25 C), initiated with 1.2% MEKP-925H by volume *
Gel Time, min:sec 16:00-19:00
Gel to Peak Exotherm Time, min:sec 9:00-20:00
Peak Exotherm 300-350 F (149-177 C)
HAP Content, % 37.0-42.0
Specific Gravity 1.15-1.17
TYPICAL PROPERTIES
Thickness 1/8 inch (3.2 mm) Casting 1/8 inch (3.2 mm) Laminate
Construction Not Applicable 4 Plies 1.5 oz/ft
2
, 33% Glass Mat
Flexural Strength, ASTM D790 22,000 psi 150 MPa 25,400 psi 175 MPa
Flexural Modulus, ASTM D790 5.6 x 10
5
psi 3,800 MPa 11.0 x 10
5
psi 7,586 MPa
Tensile Strength, ASTM D638 13,000 psi 89 MPa 13,900 psi 85.8 MPa
Tensile Modulus, ASTM D638 5.1 x 10
5
psi 3,500 MPa 12.8 x 10
5
psi 8,828 MPa
Tensile Elongation, ASTM D638 6.4 % 6.4 % 1.4 % 1.4 %
Barcol Hardness, 934-1 gauge, ASTM D2583 34 34 44-48 44-48
Heat Distortion Temperature, ASTM D648 220 F 104 C -- F -- C
* Gel time and reactivity will vary due to the type and concentration of Free Radical Initiator (catalyst), shop temperature, humidity, and type of fillers used. In order to meet
your individual needs consult our technical sales representative for assistance. If using methyl ethyl ketone peroxide (MEKP) to gel and cure CoREZYN vinyl ester resins
we recommend only these three brands: Cadox L-50a (Akzo Nobel); Luperox DHD-9 (Arkema); and Norox MEKP-925H (United Initiators). These must be used at
the appropriate percentage and suitable temperature. Contact your Interplastic Corporation representative for assistance.
FLAME TEST PROPERTIES
Thickness 1/8 inch (3.2 mm) Laminate
Construction 4 Plies 1.5 oz/ft
2
, 33% Glass Mat
ASTM D635, Horizontal Burn Rate < 1
ASTM E84, Flame Spread 25
UL 94 **This is not to imply UL warranty (V-O) (HB < 1 ) (5V Pass)
HLT 15 100
CORVE8401
Fire Retardant Vinyl Ester Resin
Technical Data Sheet
by | Sep 27, 2025
All specifications and properties specified above are approximate. Specifications and properties of material delivered may vary slightly
from those given above. Interplastic Corporation makes no representations of fact regarding the material except those specified above.
No person has any authority to bind Interplastic Corporation to any representation except those specified above. Final determination of
the suitability of the material for the use contemplated is the sole responsibility of the Buyer. Our technical sales representatives will
assist in developing procedures to fit individual requirements, but all advice is accepted at your risk and should be checked for
suitability to your particular processes. These test data and properties are based on results obtained for a specific material under the
specified test conditions. They are not to be used as specifications and are not warranted as performance attributes for any product or
system. Specifications and properties of standard production material may vary slightly from those in this report. Interplastic
Corporation makes no warranties regarding any material and/or samples described in this report unless that representation is provided
to your company in writing by a Technical Director of Interplastic Corporation or one of his or her managers.
INTERPLASTIC CORPORATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 9/21/17
CORVE8425 is a corrosion resistant, promoted, thixotropic vinyl ester resin for use in open molding applications.
FEATURES BENEFITS
100% Vinyl Ester Resin Excellent physical and corrosion properties
Promoted Resin System Ready for immediate use in customer applications
Class 1 Out of the Drum No special mixing equipment or other materials needed
Contains Less Than 46.2% Styrene (HAP) Federal MACT-Open Molding Non-Atomized
Corrosion Resistant resin
Contains Less Than 48% VOC SCAQMD Rule 1162-compliant corrosion resistant resin
RELATED PRODUCTS GEL TIME
CORVE8425-30 25-35 Minutes
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model LV #3 Spindle @ 60 rpm, 77 F (25 C), cps (see Note 1 below) 450-650
Thixotropic Index 2.0-3.5
100 grams neat resin @ 77 F (25 C), initiated with 1.75% MEKP-925H by weight *
Gel Time, min:sec 15:00-20:00
Gel to Peak Exotherm Time, min:sec 9:00-16:00 G
Peak Exotherm 315-375 F (157-191 C)
Non-Volatile Content, % 52.1-55.0
Hazardous Air Pollutant (Styrene) Content, % <46.2
VOC Content, % 45.0-47.9
Specific Gravity 1.15-1.17
Note 1: The viscosity sample is mix well, adjusted to 77 F, and allowed to sit unagitated in a 77 F water bath for 20-22 minutes before the
viscosity measurements are performed.
G Denotes guideline. This is a typical result but not a specification.
TYPICAL PROPERTIES
Thickness 1/8 inch (3.2 mm) Casting 1/8 inch (3.2 mm) Laminate
Construction Not Applicable 4 Plies 1.5 oz/ft
2
, 33% Glass Mat
Flexural Strength, ASTM D790 19 ,500 psi 134 MPa 25,400 psi 175 MPa
Flexural Modulus, ASTM D790 4.7 x 10
5
psi 3,200 MPa 11.0 x 10
5
psi 7,590 MPa
Tensile Strength, ASTM D638 12,700 psi 88 MPa 13,900 psi 85.8 MPa
Tensile Modulus, ASTM D638 4.8 x 10
5
psi 3,300 MPa 12.8 x 10
5
psi 8,830 MPa
Tensile Elongation, ASTM D638 4.0 % 4.0 % 1.4 % 1.4 %
Barcol Hardness, 934-1 gauge, ASTM D2583 35 35 44-48 44-48
Heat Distortion Temperature, ASTM D648 225 F 107 C -- F -- C
* Gel time and reactivity will vary due to the type and concentration of Free Radical Initiator (catalyst), shop temperature, humidity, and type of fillers used. In order to meet
your individual needs consult our technical sales representative for assistance. If using methyl ethyl ketone peroxide (MEKP) to gel and cure CoREZYN vinyl ester
resins, we recommend only these three brands: Cadox L-50a (Akzo Nobel); Luperox DHD-9 (Arkema); and Norox MEKP-925H (United Initiators). These must be
used at the appropriate percentage and suitable temperature. Contact your Interplastic Corporation representative for assistance.
FLAME TEST PROPERTIES
Construction 2 Plies 0.75 oz/ft
2
, 37% Glass Mat
ASTM E84, Flame Spread Index 18.3
ASTM E84, Smoke Development Index 140
CORVE8425
Corrosion Resistant Vinyl Ester Resin
Technical Data Sheet
by | Sep 27, 2025
Interplastic Corporation makes no warranties regarding any material and/or samples described in this report. All properties
specified above are approximate and may vary from material delivered. Delivered material complies with the Certificate of
Analysis on each shipment of product. Interplastic Corporation makes no representations of fact regarding the material
except those specified above. Final determination of part or application and the suitability of the material for the use
contemplated is the sole responsibility of the buyer. Our technical sales representatives will assist in developing procedures
to fit individual requirements as a customer accommodation, but all advice is accepted at your risk and should be checked for
suitability to your particular processes and needs. These test data and properties are based on results obtained for a specific
material under the specified test conditions. They are not to be used as specifications and are not warranted as performance
attributes for any product or system.
INTERPLASTIC CORPORATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 7/20
FOR DANIEL COMPANY ONLY
CORVE8401D is a promoted, fire retardant, vinyl ester resin. This resin has a flame spread rating of < 25 (Class 1) per
ASTM E84 Tunnel Test without additives. Contact your Interplastic Corporation representative for specific corrosion
recommendations.
FEATURES BENEFITS
Flame Spread Rating 25 per ASTM E84 No additives to cloud laminates; easy inspections
Highly Corrosion Resistant Resists acid, alkali, and oxidizing chemical environments
Excellent Physical Properties Suitable for tanks, pipe, and process equipment
RELATED PRODUCTS GEL TIME
CORVE8401DS 32-40 Minutes
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model LV #3 Spindle @ 60 rpm, 77 F (25 C), cPs 400-500
100 grams resin @ 77 F (25 C), initiated with 1.2% MEKP-925H by volume *
Gel Time, min:sec 15:00-20:00
Gel to Peak Exotherm Time, min:sec 12:00-18:30
Peak Exotherm 310-360 F (154-182 C)
HAP Content, % styrene 39.5-41.0
Specific Gravity 1.14-1.17
TYPICAL PROPERTIES
Thickness 1/8 inch (3.2 mm) Casting 1/8 inch (3.2 mm) Laminate
Construction Not Applicable 4 Plies 1.5 oz/ft
2
, 33% Glass Mat
Flexural Strength, ASTM D790 22,000 psi 150 MPa 25,400 psi 175 MPa
Flexural Modulus, ASTM D790 5.6 x 10
5
psi 3,800 MPa 11.0 x 10
5
psi 7,586 MPa
Tensile Strength, ASTM D638 13,000 psi 89 MPa 13,900 psi 85.8 MPa
Tensile Modulus, ASTM D638 5.1 x 10
5
psi 3,500 MPa 12.8 x 10
5
psi 8,828 MPa
Tensile Elongation, ASTM D638 6.4 % 6.4 % 1.4 % 1.4 %
Barcol Hardness, 934-1 gauge, ASTM D2583 34 34 44-48 44-48
Heat Distortion Temperature, ASTM D648 220 F 104 C -- F -- C
* Gel time and reactivity will vary due to the type and concentration of Free Radical Initiator (catalyst), shop temperature, humidity, and type of fillers used. In order to meet
your individual needs, consult our technical sales representative for assistance. If using methyl ethyl ketone peroxide (MEKP) to gel and cure CoREZYN vinyl ester resins,
we recommend only these three brands: Cadox L-50a (Nouryon); Luperox DHD-9 (Arkema); and Norox MEKP-925 (United Initiators). These must be used at the
appropriate percentage and suitable temperature. Contact your Interplastic Corporation representative for assistance.
FLAME TEST PROPERTIES
Thickness 1/8 inch (3.2 mm) Laminate
Construction 4 Plies 1.5 oz/ft
2
, 33% Glass Mat
ASTM D635, Horizontal Burn Rate < 1
ASTM E84, Flame Spread 25
UL 94 **This is not to imply UL warranty (V-O) (HB < 1 ) (5V Pass)
HLT 15 100
CORVE8401D
Fire Retardant Vinyl Ester Resin
Technical Data Sheet
by | Sep 27, 2025
Interplastic Corporation makes no warranties regarding any material and/or samples described in this report. All properties
specified above are approximate and may vary from material delivered. Delivered material complies with the certificate of
analysis on each shipment of product. Interplastic Corporation makes no representations of fact regarding the material
except those specified above. Final determination of part or application and the suitability of the material for the use
contemplated is the sole responsibility of the buyer. Our technical sales representatives will assist in developing procedures
to fit individual requirements as a customer accommodation, but all advice is accepted at your risk and should be checked for
suitability to your particular processes and needs. These test data and properties are based on results obtained for a specific
material under the specified test conditions – they are not to be used as specifications and are not warranted as performance
attributes for any product or system.
INTERPLASTIC CORPORATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 7/20
CORVE8190 is a promoted, thixotropic, corrosion resistant, epoxy vinyl ester resin for use in the manufacture of liner pipe
using cured-in-place techniques. The corrosion resistance of this resin is comparable to that of CORVE8100. Data on any
specific testing or corrosion recommendations will be supplied upon request.
FEATURES BENEFITS
Moderate Composite Exotherm Resistant to distortion during cure cycle
Fast Cure Time Shorter cycle times and fast hardness development
Good Fiberglass Wet-Out High composites physical properties
Tested Under ASTM D2990 for Flexural Modulus
Creep
Retains structural integrity under load in severe
conditions
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model RV #4 Spindle @ 20 rpm, 77 F (25 C), cPs 2,000-4,000
Thixotropic Index 2.9-3.9
Gel Time run in a 140 F (60 C) water bath, initiated with 1.0 phr of Perkadox
16 and 0.5 phr of Trigonox C *
Gel Time, 130 F to 150 F (54-66 C), min:sec 10:00-20:00
Gel to Peak, 150 F (66 C) to Peak Exotherm Time, min:sec 2:00-10:00
Peak Exotherm 310-400 F (154-204 C)
Non-Volatile Content, % 58.0-66.0
Room Temperature Catalyzed Stability, hours >24
Specific Gravity 1.05-1.08
TYPICAL PROPERTIES
Thickness 1/8 inch (3.2 mm) Casting 1/4 inch (6.4 mm) Laminate
Construction Not Applicable CIPP Felt Laminate
Flexural Strength, ASTM D790 19,100 psi 132 MPa 11,000 psi 76 MPa
Flexural Modulus, ASTM D790 4.7 x 10
5
psi 3,241 MPa 5.1 x 10
5
psi 3,500 MPa
Tensile Strength, ASTM D638 11,000 psi 76 MPa 6,800 psi 47 MPa
Tensile Modulus, ASTM D638 4.6 x 10
5
psi 3,172 MPa 5.3 x 10
5
psi 3,700 MPa
Tensile Elongation, ASTM D638 4.2 % 4.2 % 2.0 % 2.0 %
Barcol Hardness, 934-1 gauge, ASTM D2583 36 36 N/A N/A
Heat Distortion Temperature, ASTM D648 215 F 102 C 197 F 92 C
* Gel time and reactivity will vary due to the type and concentration of Free Radical Initiator (catalyst), shop temperature, humidity, and type of fillers used. In order to meet
your individual needs, consult our technical sales representative for assistance. If using methyl ethyl ketone peroxide (MEKP) to gel and cure CoREZYN
vinyl ester resins
we recommend only these three brands: Cadox L-50a (Nouryon); Luperox DHD-9 (Arkema); and Norox MEKP-925 (United Initiators). These must be used at the
appropriate percentage and suitable temperature. Contact your Interplastic Corporation representative for assistance.
CORVE8190
Thixotropic Vinyl Ester Resin
Technical Data Sheet
by | Sep 27, 2025
All specifications and properties specified above are approximate. Specifications and properties of material delivered may vary slightly
from those given above. Interplastic Corporation makes no representations of fact regarding the material except those specified above.
No person has any authority to bind Interplastic Corporation to any representation except those specified above. Final determination of
the suitability of the material for the use contemplated is the sole responsibility of the Buyer. Our technical sales representatives will
assist in developing procedures to fit individual requirements, but all advice is accepted at your risk and should be checked for
suitability to your particular processes. These test data and properties are based on results obtained for a specific material under the
specified test conditions. They are not to be used as specifications and are not warranted as performance attributes for any product or
system. Specifications and properties of standard production material may vary slightly from those in this report. Interplastic
Corporation makes no warranties regarding any material and/or samples described in this report unless that representation is provided
to your company in writing by a Technical Director of Interplastic Corporation or one of his or her managers.
INTERPLASTIC CORPORATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 5/17
CORVE8153 is a promoted, thixotropic, high heat distortion temperature (270 F/132 C), vinyl ester resin for use in the
manufacture of master tools and molds.
FEATURES BENEFITS
High Heat Distortion Resistance Excellent dimensional stability for long-lived parts
Excellent Solvent Resistance Resists deterioration over time
Versatile Application System Can be used in hand lay-up and spray-up
Good Fiberglass Wet-Out Easy roll-out and high laminate physical properties
Promoted for Ease of Application Good gelation properties with low foaming quality
RELATED PRODUCTS GEL TIME
CORVE8151 15-20 Minutes
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model LV #3 Spindle @ 60 rpm, 77 F (25 C), cps 550-750
Thixotropic Index 3.0-3.5
100 grams resin @ 77 F (25 C), initiated with 1.2% MEKP-925H by volume *
Gel Time, min:sec 20:00-26:00
Gel to Peak Exotherm Time, min:sec 10:00-19:00
Peak Exotherm 360-435 F (182-224 C)
Non-Volatile Content, % 52.0-56.0
Hazardous Air Pollutant (Styrene) Content, % 44.0-48.0
Specific Gravity 1.05-1.08
TYPICAL PROPERTIES
Thickness 1/8 inch (3.2 mm) Casting
Construction Not Applicable
Flexural Strength, ASTM D790 18,000 psi 124 MPa
Flexural Modulus, ASTM D790 4.8 x 10
5
psi 3,310 MPa
Tensile Strength, ASTM D638 11,400 psi 79 MPa
Tensile Modulus, ASTM D638 5.4 x 10
5
psi 3,724 MPa
Tensile Elongation, ASTM D638 3.5 % 3.5 %
Barcol Hardness, 934-1 gauge, ASTM D2583 35 35
Heat Distortion Temperature, ASTM D648 270 F 132 C
* Gel time and reactivity will vary due to the type and concentration of Free Radical Initiator (commonly called catalyst ), shop temperature, humidity, and type of fillers
used. In order to meet your individual needs consult our technical sales representative for assistance. See following page for proper selection and application of Free
Radical Initiators.
To reduce fiber print-through, we suggest a 1 oz/ft
2
(460 g/m
2
) glass mat, then a 1.0 oz/ft
2
(305 g/m
2
) cloth, followed by a 1 oz/ft
2
(460 g/m
2
) mat behind a high heat
distortion tooling gel coat. After the first laminate has gone through exotherm and has returned to room temperature the laminate schedule may begin. We recommend
an all vinyl ester tool for the highest heat distortion and cycle resistance, and a minimum of a 3/8″ (9.525 mm) vinyl ester laminate if the part is to be reinforced with
another high heat distortion laminating resin.
CORVE8153
Vinyl Ester Resin
Technical Data Sheet
All specifications and properties specified above are approximate. Specifications and properties of material delivered may vary slightly
from those given above. Interplastic Corporation makes no representations of fact regarding the material except those specified above.
No person has any authority to bind Interplastic Corporation to any representation except those specified above. Final determination of
the suitability of the material for the use contemplated is the sole responsibility of the Buyer. Our technical sales representatives will
assist in developing procedures to fit individual requirements, but all advice is accepted at your risk and should be checked for
suitability to your particular processes. These test data and properties are based on results obtained for a specific material under the
specified test conditions. They are not to be used as specifications and are not warranted as performance attributes for any product or
system. Specifications and properties of standard production material may vary slightly from those in this report. Interplastic
Corporation makes no warranties regarding any material and/or samples described in this report unless that representation is provided
to your company in writing by a Technical Director of Interplastic Corporation or one of his or her managers.
INTERPLASTIC CORPORATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 5/17
INITIATOR SELECTION AND APPLICATION
The method of application is critical to ensure that the finished part will have the desired properties.
The selection of initiator is very important. We currently recommend three brands of MEKP initiator: Cadox L-50a,
Luperox DHD-9, and Norox MEKP-925H. The use of other initiators is not recommended. If an initiator not on this
recommended list is used, the customer must establish its suitability for the application, as well as assume liability.
Use of the correct amount of initiator is also very important to ensure that the laminate cures sufficiently to obtain optimum
physical properties. When laminates 1/16th of an inch thick (0.75 mm) or thinner are constructed, the amount of initiator
should be a minimum of 1.5 percent based on the resin. The typical range of initiator is 1.7 to 2.0 percent for this
thickness. Thinner laminates require higher percentages of initiator. No benefit is seen using levels of greater than 3.0
percent, with levels of 1.0 to 3.0% recommended in the construction of laminates out of vinyl ester resins. The typical
percentage of initiator used to construct laminates greater than 1/8th of an inch (3.175 mm) thick is 1.0 to 1.2 percent.
When applying the vinyl ester as a skin coat or laminate, the gel coat should be prepared and cured normally. Initially a
coating of vinyl ester resin should be applied to wet the gel coat surface, then fiberglass may be chopped or layered on
the resin. Do not over-spray when chopping glass onto the surface. Dry fiberglass should not lie directly on the gel coat
because this can cause premature blistering of the part. The best way to ensure no over-spray is to stop chopping one to
two feet (30-60 cm) from the edge of the vinyl ester resin layer which has dry gel coat adjacent.
The vinyl ester skin coat should be allowed to cure from one to four hours, depending on the gel time of resin being used,
the ambient temperature, and the temperature of the mold. Interplastic Corporation will provide timetable guidelines for
when the skin coat is ready to be laminated. The skin coat may be left overnight before applying subsequent coats;
however, the skin coat should not be left for longer than 24 hours because of the risk of delamination within the
composite. The surface of the skin coat should be tacky to the touch to ensure proper bonding between layers. If the
surface is not tacky, it should be thoroughly roughed up with medium grade sandpaper and cleaned before applying the
next layer to ensure a good bond.
Cadox is a registered trademark of Akzo Nobel Chemicals B.V. or its affiliates in one or more territories.
Luperox is a registered trademark of Arkema Inc.
Norox is a registered trademark of United Initiators.
by | Sep 27, 2025
All specifications and properties specified above are approximate. Specifications and properties of material delivered may vary slightly
from those given above. Interplastic Corporation makes no representations of fact regarding the material except those specified above.
No person has any authority to bind Interplastic Corporation to any representation except those specified above. Final determination of
the suitability of the material for the use contemplated is the sole responsibility of the Buyer. Our technical sales representatives will
assist in developing procedures to fit individual requirements, but all advice is accepted at your risk and should be checked for
suitability to your particular processes. These test data and properties are based on results obtained for a specific material under the
specified test conditions. They are not to be used as specifications and are not warranted as performance attributes for any product or
system. Specifications and properties of standard production material may vary slightly from those in this report. Interplastic
Corporation makes no warranties regarding any material and/or samples described in this report unless that representation is provided
to your company in writing by a Technical Director of Interplastic Corporation or one of his or her managers.
INTERPLASTIC CORPORATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 5/17
CORVE8153 is a promoted, thixotropic, high heat distortion temperature (270 F/132 C), vinyl ester resin for use in the
manufacture of master tools and molds.
FEATURES BENEFITS
High Heat Distortion Resistance Excellent dimensional stability for long-lived parts
Excellent Solvent Resistance Resists deterioration over time
Versatile Application System Can be used in hand lay-up and spray-up
Good Fiberglass Wet-Out Easy roll-out and high laminate physical properties
Promoted for Ease of Application Good gelation properties with low foaming quality
RELATED PRODUCTS GEL TIME
CORVE8151 15-20 Minutes
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model LV #3 Spindle @ 60 rpm, 77 F (25 C), cps 550-750
Thixotropic Index 3.0-3.5
100 grams resin @ 77 F (25 C), initiated with 1.2% MEKP-925H by volume *
Gel Time, min:sec 20:00-26:00
Gel to Peak Exotherm Time, min:sec 10:00-19:00
Peak Exotherm 360-435 F (182-224 C)
Non-Volatile Content, % 52.0-56.0
Hazardous Air Pollutant (Styrene) Content, % 44.0-48.0
Specific Gravity 1.05-1.08
TYPICAL PROPERTIES
Thickness 1/8 inch (3.2 mm) Casting
Construction Not Applicable
Flexural Strength, ASTM D790 18,000 psi 124 MPa
Flexural Modulus, ASTM D790 4.8 x 10
5
psi 3,310 MPa
Tensile Strength, ASTM D638 11,400 psi 79 MPa
Tensile Modulus, ASTM D638 5.4 x 10
5
psi 3,724 MPa
Tensile Elongation, ASTM D638 3.5 % 3.5 %
Barcol Hardness, 934-1 gauge, ASTM D2583 35 35
Heat Distortion Temperature, ASTM D648 270 F 132 C
* Gel time and reactivity will vary due to the type and concentration of Free Radical Initiator (commonly called catalyst ), shop temperature, humidity, and type of fillers
used. In order to meet your individual needs consult our technical sales representative for assistance. See following page for proper selection and application of Free
Radical Initiators.
To reduce fiber print-through, we suggest a 1 oz/ft
2
(460 g/m
2
) glass mat, then a 1.0 oz/ft
2
(305 g/m
2
) cloth, followed by a 1 oz/ft
2
(460 g/m
2
) mat behind a high heat
distortion tooling gel coat. After the first laminate has gone through exotherm and has returned to room temperature the laminate schedule may begin. We recommend
an all vinyl ester tool for the highest heat distortion and cycle resistance, and a minimum of a 3/8″ (9.525 mm) vinyl ester laminate if the part is to be reinforced with
another high heat distortion laminating resin.
CORVE8153
Vinyl Ester Resin
Technical Data Sheet
All specifications and properties specified above are approximate. Specifications and properties of material delivered may vary slightly
from those given above. Interplastic Corporation makes no representations of fact regarding the material except those specified above.
No person has any authority to bind Interplastic Corporation to any representation except those specified above. Final determination of
the suitability of the material for the use contemplated is the sole responsibility of the Buyer. Our technical sales representatives will
assist in developing procedures to fit individual requirements, but all advice is accepted at your risk and should be checked for
suitability to your particular processes. These test data and properties are based on results obtained for a specific material under the
specified test conditions. They are not to be used as specifications and are not warranted as performance attributes for any product or
system. Specifications and properties of standard production material may vary slightly from those in this report. Interplastic
Corporation makes no warranties regarding any material and/or samples described in this report unless that representation is provided
to your company in writing by a Technical Director of Interplastic Corporation or one of his or her managers.
INTERPLASTIC CORPORATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 5/17
INITIATOR SELECTION AND APPLICATION
The method of application is critical to ensure that the finished part will have the desired properties.
The selection of initiator is very important. We currently recommend three brands of MEKP initiator: Cadox L-50a,
Luperox DHD-9, and Norox MEKP-925H. The use of other initiators is not recommended. If an initiator not on this
recommended list is used, the customer must establish its suitability for the application, as well as assume liability.
Use of the correct amount of initiator is also very important to ensure that the laminate cures sufficiently to obtain optimum
physical properties. When laminates 1/16th of an inch thick (0.75 mm) or thinner are constructed, the amount of initiator
should be a minimum of 1.5 percent based on the resin. The typical range of initiator is 1.7 to 2.0 percent for this
thickness. Thinner laminates require higher percentages of initiator. No benefit is seen using levels of greater than 3.0
percent, with levels of 1.0 to 3.0% recommended in the construction of laminates out of vinyl ester resins. The typical
percentage of initiator used to construct laminates greater than 1/8th of an inch (3.175 mm) thick is 1.0 to 1.2 percent.
When applying the vinyl ester as a skin coat or laminate, the gel coat should be prepared and cured normally. Initially a
coating of vinyl ester resin should be applied to wet the gel coat surface, then fiberglass may be chopped or layered on
the resin. Do not over-spray when chopping glass onto the surface. Dry fiberglass should not lie directly on the gel coat
because this can cause premature blistering of the part. The best way to ensure no over-spray is to stop chopping one to
two feet (30-60 cm) from the edge of the vinyl ester resin layer which has dry gel coat adjacent.
The vinyl ester skin coat should be allowed to cure from one to four hours, depending on the gel time of resin being used,
the ambient temperature, and the temperature of the mold. Interplastic Corporation will provide timetable guidelines for
when the skin coat is ready to be laminated. The skin coat may be left overnight before applying subsequent coats;
however, the skin coat should not be left for longer than 24 hours because of the risk of delamination within the
composite. The surface of the skin coat should be tacky to the touch to ensure proper bonding between layers. If the
surface is not tacky, it should be thoroughly roughed up with medium grade sandpaper and cleaned before applying the
next layer to ensure a good bond.
Cadox is a registered trademark of Akzo Nobel Chemicals B.V. or its affiliates in one or more territories.
Luperox is a registered trademark of Arkema Inc.
Norox is a registered trademark of United Initiators.
by | Sep 27, 2025
Interplastic Corporation makes no warranties regarding any material and/or samples described in this report. All properties
specified above are approximate and may vary from material delivered. Delivered material complies with the certificate of
analysis on each shipment of product. Interplastic Corporation makes no representations of fact regarding the material
except those specified above. Final determination of part or application and the suitability of the material for the use
contemplated is the sole responsibility of the buyer. Our technical sales representatives will assist in developing procedures
to fit individual requirements as a customer accommodation, but all advice is accepted at your risk and should be checked for
suitability to your particular processes and needs. These test data and properties are based on results obtained for a specific
material under the specified test conditions – they are not to be used as specifications and are not warranted as performance
attributes for any product or system.
INTERPLASTIC CORPO RATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 8/16
CORVE8151 is a promoted, thixotropic, high heat distortion temperature (270 F/132 C), vinyl ester resin for use in the
manufacture of master tools and molds.
FEATURES BENEFITS
High Heat Distortion Resistance Excellent dimensional stability for long-lived parts
Excellent Solvent Resistance Resists deterioration over time
Versatile Application System Can be used in hand lay-up and spray-up
Good Fiberglass Wet-Out Easy roll-out and high laminate physical properties
Promoted for Ease of Application Good gelation properties with low foaming quality
RELATED PRODUCTS GEL TIME
CORVE8153 20-26 Minutes
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model LV #3 Spindle @ 60 rpm, 77 F (25 C), cPs 550-750
Thixotropic Index 3.0-3.5
100 grams resin @ 77 F (25 C), initiated with 1.2% MEKP-925H by volume *
Gel Time, min:sec 15:00-20:00
Gel to Peak Exotherm Time, min:sec 7:00-14:00
Peak Exotherm 360-435 F (182-224 C)
Non-Volatile Content, % 52.0-56.0
Hazardous Air Pollutant (Styrene) Content, % 44.0-48.0
Specific Gravity 1.00-1.09
TYPICAL PROPERTIES
Thickness 1/8 inch (3.2 mm) Casting
Construction Not Applicable
Flexural Strength, ASTM D790 18,000 psi 124 MPa
Flexural Modulus, ASTM D790 4.8 x 10
5
psi 3,310 MPa
Tensile Strength, ASTM D638 11,400 psi 79 MPa
Tensile Modulus, ASTM D638 5.4 x 10
5
psi 3,724 MPa
Tensile Elongation, ASTM D638 3.5 % 3.5 %
Barcol Hardness, 934-1 gauge, ASTM D2583 35 35
Heat Distortion Temperature, ASTM D648 270 F 132 C
* Gel time and reactivity will vary due to the type and concentration of Free Radical Initiator (commonly called catalyst ), shop temperature, humidity, and type of filler
used. In order to meet your individual needs, consult our technical sales representative for assistance. See following page for proper selection and application of Free
Radical Initiators.
To reduce fiber print-through, we suggest a 1 oz/ft
2
(460 g/m
2
) glass mat, then a 1.0 oz/ft
2
(305 g/m
2
) cloth, followed by a 1 oz/ft
2
(460 g/m
2
) mat behind a high heat
distortion temperature tooling gel coat. After the first laminate has gone through exotherm and has returned to room temperature the laminate schedule may begin. We
recommend an all-vinyl-ester tool for the highest heat distortion temperature and cycle resistance, and a minimum of a 3/8″ (9.525 mm) vinyl ester laminate if the part is
to be reinforced with another high heat distortion temperature laminating resin.
CORVE8151
Vinyl Ester Resin
Technical Data Sheet
Interplastic Corporation makes no warranties regarding any material and/or samples described in this report. All properties
specified above are approximate and may vary from material delivered. Delivered material complies with the certificate of
analysis on each shipment of product. Interplastic Corporation makes no representations of fact regarding the material
except those specified above. Final determination of part or application and the suitability of the material for the use
contemplated is the sole responsibility of the buyer. Our technical sales representatives will assist in developing procedures
to fit individual requirements as a customer accommodation, but all advice is accepted at your risk and should be checked for
suitability to your particular processes and needs. These test data and properties are based on results obtained for a specific
material under the specified test conditions – they are not to be used as specifications and are not warranted as performance
attributes for any product or system.
INTERPLASTIC CORPO RATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 8/16
INITIATOR SELECTION AND APPLICATION
The method of application is critical to ensure that the finished part will have the desired properties.
The selection of initiator is very important. We currently recommend three brands of MEKP initiator: Cadox L-50a,
Luperox DHD-9, and Norox MEKP-925H. The use of other initiators is not recommended. If an initiator not on this
recommended list is used, the customer must establish its suitability for the application, as well as assume liability.
Use of the correct amount of initiator is also very important to ensure that the laminate cures sufficiently to obtain optimum
physical properties. When laminates 1/16th of an inch thick (0.75 mm) or thinner are constructed, the amount of initiator
should be a minimum of 1.5 percent based on the resin. The typical range of initiator amounts is 1.7 to 2.0 percent for this
thickness. Thinner laminates require higher percentages of initiators. No benefit is seen using levels greater than 3.0
percent, with levels of 1.0 to 3.0% recommended in the construction of laminates out of vinyl ester resins. The typical
percentage of initiator used to construct laminates greater than 1/8th of an inch (3.175 mm) thick is 1.0 to 1.2 percent.
When applying the vinyl ester as a skin coat or laminate, the gel coat should be prepared and cured normally. Initially a
coating of vinyl ester resin should be applied to wet the gel coat surface; then fiberglass may be chopped or layered on
the resin. Do not over-spray when chopping glass onto the surface. Dry fiberglass should not lie directly on the gel coat
because this can cause premature blistering of the part. The best way to ensure no over-spray is to stop chopping 1-2 feet
(30-60 cm) from the edge of the vinyl ester resin layer that has dry gel coat adjacent.
The vinyl ester skin coat should be allowed to cure from one to four hours, depending on the gel time of resin being used,
the ambient temperature, and the temperature of the mold. Interplastic Corporation will provide timetable guidelines for
when the skin coat is ready to be laminated. The skin coat may be left overnight before applying subsequent coats;
however, the skin coat should not be left for longer than 24 hours because of the risk of delamination within the
composite. The surface of the skin coat should be tacky to the touch to ensure proper bonding between layers. If the
surface is not tacky it should be thoroughly roughed up with medium grade sandpaper and cleaned before applying the
next layer to ensure a good bond.
Cadox is a registered trademark of Nouryon Functional Chemicals B.V. or affiliates in one or more territories.
Luperox is a registered trademark of Arkema, Inc.
Norox is a registered trademark of United Initiators Spi, Inc.
by | Sep 27, 2025
Interplastic Corporation makes no warranties regarding any material and/or samples described in this report. All properties
specified above are approximate and may vary from material delivered. Delivered material complies with the certificate of
analysis on each shipment of product. Interplastic Corporation makes no representations of fact regarding the material
except those specified above. Final determination of part or application and the suitability of the material for the use
contemplated is the sole responsibility of the buyer. Our technical sales representatives will assist in developing procedures
to fit individual requirements as a customer accommodation, but all advice is accepted at your risk and should be checked for
suitability to your particular processes and needs. These test data and properties are based on results obtained for a specific
material under the specified test conditions – they are not to be used as specifications and are not warranted as performance
attributes for any product or system.
INTERPLASTIC CORPORATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 8/16
CORVE8129
Thixotropic Vinyl Ester Resin
Technical Data Sheet
CORVE8129 is a promoted, thixotropic, vinyl ester resin used in spray-up and hand lay-up applications. It is specifically
formulated for the boat, pool, spa manufacture, and may also be used in other applications that require high physical
properties and excellent fatigue performance.
FEATURES BENEFITS
Moderate Laminate Exotherm Good cosmetic surface and minimal glass print
Fast Trim Time Shorter cycle time and fast Barcol development
Good Fiberglass Wet-Out Easy roll-out and high laminate physical properties
Promoted for Ease of Application Good gelation properties with low foaming quality
Excellent Fatigue Performance 1 Long service life for composites under loading
Low Water Absorption and Excellent Blister Resistance 2 Eliminates need for repairing blisters in composites
immersed in water
Retention of Physical Properties after Immersion in Water
for 15 Years 3
Minimal to no loss of physical properties after long term
exposure to water
RELATED PRODUCTS GEL TIME MEKP Level, % by weight
CORVE8115 10-15 Minutes 1.2
CORVE8117 15-20 Minutes 1.2
CORVE8119 20-25 Minutes 1.2
CORVE8121 25-30 Minutes 1.2
CORVE8123 32-37 Minutes 1.2
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model LV, #3 Spindle @ 60 rpm, 77 F (25 C), cPs 475-675
Thixotropic Index 2.5-3.2
100 grams resin @ 77 F (25 C), initiated with 1.4% MEKP-925H by weight *
Gel Time, min:sec 35:00-45:00
Gel to Peak Exotherm Time, min:sec 10:00-20:00
Peak Exotherm 300-370 F (149-188 C)
Non-Volatile Content, % 51.0-56.0
Specific Gravity 1.00-1.03
TYPICAL PROPERTIES
Thickness 1/8 inch (3.2 mm) Casting 1/8 inch (3.2 mm) Laminate
Construction Not Applicable 4 Plies 1.5 oz/ft
2
, 33% Glass Mat
Flexural Strength, ASTM D790 19,000 psi 131 MPa 32,600 psi 225 MPa
Flexural Modulus, ASTM D790 4.7 x 10
5
psi 3,240 MPa 11.0 x 10
5
psi 7,586 MPa
Tensile Strength, ASTM D638 11,800 psi 81 MPa 16,300 psi 112 MPa
Tensile Modulus, ASTM D638 4.0 x 10
5
psi 2,760 MPa 11.0 x 10
5
psi 7,586 MPa
Tensile Elongation, ASTM D638 4.5 % 4.5 % 2.0 % 2.0 %
Barcol Hardness, 934-1 gauge, ASTM D2583 34 34 47 47
Heat Distortion Temperature, ASTM D648 210 F 99 C — —
* Gel time and reactivity will vary due to the type and concentration of Free Radical Initiator (catalyst), shop temperature, humidity, and type of fillers used. In order to meet
your individual needs consult our technical sales representative for assistance. If using methyl ethyl ketone peroxide (MEKP) to gel and cure CoREZYN
vinyl ester resins
we recommend only these three brands: Cadox L-50a (Nouryon); Luperox DHD-9 (Arkema); or Norox MEKP-925H (United Initiators). These must be used at the
appropriate percentage and suitable temperature. Contact your Interplastic Corporation representative for assistance.
1. Cycle Test Evaluation of Various Polyester Types and a Mathematical Model for Projecting Flexural Fatigue Endurance
2. A 15-Year Study of the Effective Use of Permeation Barriers in Marine Composites
3. Physical Properties Evaluation of FRP Composites after 15-Year Immersion in Water
by | Sep 27, 2025
Interplastic Corporation makes no warranties regarding any material and/or samples described in this report. All properties
specified above are approximate and may vary from material delivered. Delivered material complies with the Certificate of
Analysis on each shipment of product. Interplastic Corporation makes no representations of fact regarding the material
except those specified above. Final determination of part or application and the suitability of the material for the use
contemplated is the sole responsibility of the buyer. Our technical sales representatives will assist in developing procedures
to fit individual requirements as a customer accommodation, but all advice is accepted at your risk and should be checked for
suitability to your particular processes and needs. These test data and properties are based on results obtained for a specific
material under the specified test conditions – they are not to be used as specifications and are not warranted as performance
attributes for any product or system.
INTERPLASTIC CORPORATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 10/17
CORVE8125-30
Thixotropic Vinyl Ester Resin
Technical Data Sheet
CORVE8125-30 is a promoted, thixotropic 100% vinyl ester resin used in spray-up and hand lay-up applications.
CORVE8125-30 is formulated to contain lower styrene concentrations than CORVE8123. It is specifically formulated for
boat, pool, and spa manufacture, and may also be used in other applications that require high physical properties and
excellent fatigue performance.
FEATURES BENEFITS
Moderate Laminate Exotherm Good cosmetic surface and minimal glass print
Fast Trim Time Shorter cycle time and fast Barcol development
Good Fiberglass Wet-Out Easy roll-out and high laminate physical properties
Promoted for Ease of Application Good gelation properties with low foaming quality
Excellent Fatigue Performance 1 Long service life for composites under loading
Low Water Absorption and Excellent Blister
Resistance 2
Eliminates need for repairing blisters in composites
immersed in water
Retention of Physical Properties After Immersion in
Water for 15 Years 3
Minimal to zero loss of physical properties after long
term exposure to water
RELATED PRODUCT S GEL TIME
CORVE8125-40 40-50 Minutes
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model LV #3 Spindle @ 60 rpm, 77 F (25 C), cPs 450-600
Thixotropic Index 2.4-3.0
100 grams resin @ 77 F (25 C), initiated with 1.2% MEKP-925H by volume *
Gel Time, min:sec 30:00-40:00
Gel to Peak Exotherm Time, min:sec 8:00-25:00
Peak Exotherm 325-375 F (163-191 C)
HAP (Styrene) Content, % 35.0-40.0
Specific Gravity 1.02-1.05
TYPICAL PROPERTIES
Thickness 1/8 inch (3.2 mm) Casting 1/8 inch (3.2 mm) Laminate
Construction Not Applicable 4 Plies 1.5 oz/ft
2
, 33% Glass Mat
Flexural Strength, ASTM D790 20,300 psi 140 MPa 37,055 psi 256 MPa
Flexural Modulus, ASTM D790 5.12 x 10
5
psi 3,530 MPa 12.1 x 10
5
psi 8,345 MPa
Tensile Strength, ASTM D638 11,600 psi 80.0 MPa 24,401 psi 168 MPa
Tensile Modulus, ASTM D638 5.07 x 10
5
psi 3,500 MPa 14.1 x 10
5
psi 9,752 MPa
Tensile Elongation, ASTM D638 3.3 % 3.3 % 2.3 % 2.3 %
Barcol Hardness, 934-1 gauge, ASTM D2583 41 41 50-54 50-54
Heat Distortion Temperature, ASTM D648 230 F 110 C — F — C
* Gel time and reactivity will vary due to the type and concentration of Free Radical Initiator (catalyst), shop temperature, humidity, and type of fillers used. In order to meet
your individual needs, consult our technical sales representative for assistance. If using methyl ethyl ketone peroxide (MEKP) to gel and cure CoREZYN
vinyl ester
resins, we recommend only these three brands: Cadox L-50a (Nouryon); Luperox DHD-9 (Arkema); and Norox MEKP-925H (United Initiators). These must be used
at the appropriate percentage and suitable temperature. Contact your Interplastic Corporation representative for assistance.
1. Cycle Test Evaluation of Various Polyester Types and a Mathematical Model for Projecting Flexural Fatigue Endurance
2. A 15-Year Study of the Effective Use of Permeation Barriers in Marine Composites
3. Physical Properties Evaluation of FRP Composites after 15-Year Immersion in Water
NOTE: The technical papers above are available as .pdf files at www.interplastic.com.
