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