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: 8/18 Page 1 of 2
CORVE8730 is a non-promoted, epoxy novolac-based vinyl ester resin. This high cross-link density resin has a heat
distortion point of 280 F (138 C) and exceptional chemical resistance. Typical uses are filament winding and hand lay-up
of reinforced plastic tanks, pipe and process equipment, etc. Its high heat distortion point also makes this resin an
outstanding choice for high temperature applications.
FEATURES BENEFITS
High Physical Properties Makes extremely tough composites
Highly Versatile Viscosity Properties Formulated for spray-up and hand lay-up needs
Non-Promoted Resin System Able to adapt to customer-specific conditions
Outstanding Corrosion Resistance Resists caustic and solvent with hydrolytic stability
High Heat Distortion Resistance Maintains dimensional stability
RELATED PRODUCTS GEL TIME
MVR8071-40 35-43 Minutes
LIQUID PROPERTIES RESULTS
Viscosity, Brookfield Model LV, #3 Spindle @ 60 rpm, 77 F (25 C), cPs 250-400
100 grams resin @ 77 F (25 C), promoted with 0.20 gram of 12% cobalt, initiated
with 1.2% MEKP-925H by volume*
Gel Time, min:sec 16:00-19:00
Gel to Peak Exotherm Time, min:sec 6:00-14:00
Peak Exotherm 370-410 F (187-210 C)
Non-Volatile Content, % 62.0-66.5
Hazardous Air Pollutant (Styrene) Content, % 33.5-38.0
Specific Gravity 1.05-1.09
TYPICAL PROPERTIES
Thickness 1/8 inch (3.2 mm) Casting
Construction Not Applicable
Flexural Strength, ASTM D790 18,400 psi 127 MPa
Flexural Modulus, ASTM D790 5.2 x 10
5
psi 3,586 MPa
Tensile Strength, ASTM D638 10,400 psi 72 MPa
Tensile Modulus, ASTM D638 5.3 x 10
5
psi 3,655 MPa
Tensile Elongation, ASTM D638 3.0 % 3.0 %
Barcol Hardness, 934-1 gauge, ASTM D2583 38 38
Heat Distortion Temperature, ASTM D648 280 F 138 C
Specific Gravity, ASTM D792 1.19 1.19
*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.
CORVE8730
Vinyl 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 CORPORATION
2015 Northeast Broadway Street
Minneapolis, Minnesota 55413-1775
651.481.6860 Fax 612.331.4235
www.interplastic.com
Revised: 8/18 Page 2 of 2
TYPICAL 100-GRAM CUP GEL TIME CHART FOR LOWER EXOTHERM WITH CUMENE HYDROPEROXIDE (CHP)
Temperature ( F/ C) 12% Cobalt (Wt%) DMA (Wt%) 2,4-Pentanedione (Wt%) CHP (Wt%) Gel Time* (min)
60/16 0.2 0.2 0 1.5 34
60/16 0.2 0.1 0 2 39
60/16 0.2 0.1 0 1.5 48
77/25 0.2 0.2 0 1.5 22
77/25 0.3 0.1 0 1.5 24
77/25 0.2 0.1 0 1.5 29
77/25 0.2 0.1 0 2 30
77/25 0.2 0.1 0.05 1.5 43
77/25 0.3 0.1 0.1 1.5 48
77/25 0.2 0.1 0.1 2 55
77/25 0.2 0.2 0.1 1.5 51
77/25 0.2 0.1 0.1 1.5 63
77/25 0.2 0.1 0.15 1.5 85
90/32 0.2 0.1 0 1.5 15
90/32 0.2 0.1 0.05 1.5 26
90/32 0.2 0.1 0.1 1.5 30
*Gel time is run in a 100-gram mass at the specified temperature.