CoREZYN® CORVE8100 Infusion Resin vs. Interplastic CoREZYN CORVE8740 Urethane-Modified VE
CoREZYN® CORVE8100 Infusion Resin (Interplastic Corp) and Interplastic CoREZYN CORVE8740 Urethane-Modified VE (Interplastic Corp) achieve a 96.8% ASTM engineering compatibility score in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa). Tensile strength delta is -1.6 MPa (-1.9%) and thermal HDT delta is +3 °C, making them qualified for direct drop-in substitution under standard cure schedules.
Side-by-Side ASTM Mechanical, Thermal, Rheological & Pricing Delta
| ASTM Parameter | A: CoREZYN® CORVE8100 Infusion Resin (Interplastic Corp) | B: Interplastic CoREZYN CORVE8740 Urethane-Modified VE (Interplastic Corp) | Engineering Delta (A vs. B) |
|---|---|---|---|
| OEM Manufacturer & SKU | Interplastic Corp • INT-CORVE8100-55G | Interplastic Corp • IPC-CORVE8740 | Same OEM Portfolio |
| ASTM D638 Tensile Strength (MPa / PSI) | 81.4 MPa (11,800 psi) | 83 MPa (12,038 psi) | -1.6 MPa (-1.9 %) |
| ASTM D648 Heat Deflection Temp (HDT °C / °F) | 105 °C (221 °F) | 102 °C (216 °F) | +3 °C (Direct Thermal Match) |
| ASTM D790 Flexural Strength (MPa) | 118 MPa | 145 MPa | -27 MPa (-18.6 %) |
| ASTM D2583 Barcol Hardness | 35 | 38 | -3 Barcol |
| ASTM D2196 Brookfield Viscosity @ 25°C | 175 cPs | 310 cPs | -135 cPs (-43.5 %) |
| Gel Time @ 25°C (Minutes) | 35 min | 28 min | +7 min |
| ASTM D792 Specific Density (kg/m³) | 1120 kg/m³ | 1130 kg/m³ | -10 kg/m³ |
| US DOT 49 CFR & TDG Hazmat Class | US DOT Class 3 (UN1866 Resin Solution) (UN1866) | Class 3 Flammable Liquid (UN1866) | Identical (UN1866) |
| Unit Price ($/kg USD) & Pack Price | $7.4/kg • $1,480 (55-Gal Drum (450 lbs)) | $11.1/kg • $2,276 (205 kg Drum) | -3.7 $/kg (-33.3 %) |
| US Stocking Warehouses | FL • TX • IN • SC | Tampa, FL • Houston, TX • Minneapolis, MN | 1–3 Days LTL Dispatch |
Companion process stack: Structural Core-Bonding Putty (0.55 kg/m² kerf fill) + Marine Vinyl Ester or Infusion Epoxy Matrix. Follow CORE BEDDING & RESIN UPTAKE: Grid-scored (GS) or grooved/perforated (GP) sheets require ~0.55 kg/m² extra resin for kerf/groove filling or a dedicated structural core-bonding putty.
Direct Drop-In Qualified: Thermal deflection (ASTM D648 HDT) differs by only 3 °C (105 °C vs. 102 °C). Existing mold cure and demold cycles can be maintained without thermal schedule modification.
Identical Hazmat Logistics Profile: Both SKUs ship under US DOT 49 CFR & Transport Canada TDG as US DOT Class 3 (UN1866 Resin Solution) (UN Number: UN1866). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105).
Engineering FAQ: CoREZYN® CORVE8100 Infusion Resin vs. Interplastic CoREZYN CORVE8740 Urethane-Modified VE
1. Is CoREZYN® CORVE8100 Infusion Resin a direct drop-in equivalent for Interplastic CoREZYN CORVE8740 Urethane-Modified VE?▼
CoREZYN® CORVE8100 Infusion Resin (Interplastic Corp) and Interplastic CoREZYN CORVE8740 Urethane-Modified VE (Interplastic Corp) achieve a 96.8% ASTM engineering compatibility score in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa). Tensile strength delta is -1.6 MPa (-1.9%) and thermal HDT delta is +3 °C, making them qualified for direct drop-in substitution under standard cure schedules.
2. What is the ASTM D638 Tensile Strength and ASTM D648 HDT difference between CoREZYN® CORVE8100 Infusion Resin and Interplastic CoREZYN CORVE8740 Urethane-Modified VE?▼
CoREZYN® CORVE8100 Infusion Resin (Interplastic Corp) delivers ASTM D638 Tensile Strength of 81.4 MPa (11,800 psi) and ASTM D648 HDT of 105 °C, whereas Interplastic CoREZYN CORVE8740 Urethane-Modified VE (Interplastic Corp) delivers 83 MPa (12,038 psi) and HDT of 102 °C. The net delta is -1.6 MPa (-1.9 %) tensile and +3 °C HDT.
3. Do CoREZYN® CORVE8100 Infusion Resin and Interplastic CoREZYN CORVE8740 Urethane-Modified VE use the same catalyst or hardener cure system?▼
Companion process stack: Structural Core-Bonding Putty (0.55 kg/m² kerf fill) + Marine Vinyl Ester or Infusion Epoxy Matrix. Follow CORE BEDDING & RESIN UPTAKE: Grid-scored (GS) or grooved/perforated (GP) sheets require ~0.55 kg/m² extra resin for kerf/groove filling or a dedicated structural core-bonding putty. Direct Drop-In Qualified: Thermal deflection (ASTM D648 HDT) differs by only 3 °C (105 °C vs. 102 °C). Existing mold cure and demold cycles can be maintained without thermal schedule modification.
4. How do US DOT 49 CFR Hazmat shipping rules and B2B drum/pack prices compare between CoREZYN® CORVE8100 Infusion Resin and Interplastic CoREZYN CORVE8740 Urethane-Modified VE?▼
Identical Hazmat Logistics Profile: Both SKUs ship under US DOT 49 CFR & Transport Canada TDG as US DOT Class 3 (UN1866 Resin Solution) (UN Number: UN1866). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105). In US B2B distribution, CoREZYN® CORVE8100 Infusion Resin is priced at $1,480 per 55-Gal Drum (450 lbs) ($7.4/kg) vs. $2,276 per 205 kg Drum ($11.1/kg) for Interplastic CoREZYN CORVE8740 Urethane-Modified VE (delta: -3.7 USD/kg).
Related Drop-In Comparisons in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa)
CoREZYN® CORVE8100 Infusion Resin (Interplastic Corp) and Interplastic CoREZYN CORVE8740 Urethane-Modified VE (Interplastic Corp) are trademarks of their respective owners. CompositeMatrix Technologies Inc. is an independent North American B2B composite material intelligence registry; comparative ASTM D638, D648, D790, D2583, and D2196 figures are presented under the US legal doctrine of Nominative Fair Use (Lanham Act, 15 U.S.C. § 1125) and Feist Publications, Inc. v. Rural Telephone Service Co. (499 U.S. 340) for scientific and industrial cross-reference. Cure schedules, exotherm behavior, and laminate qualification must be verified by a licensed Naval Architect or Professional Engineer (PE) against current manufacturer batch Technical Data Sheets (TDS) and Safety Data Sheets (SDS).