INEOS Derakane Signia 411-350 Low-Odor Marine Vinyl Ester vs. Interplastic CoREZYN CORVE8740 Urethane-Modified VE
INEOS Derakane Signia 411-350 Low-Odor Marine Vinyl Ester (INEOS Composites US) and Interplastic CoREZYN CORVE8740 Urethane-Modified VE (Interplastic Corp) achieve a 68% ASTM engineering compatibility score in Marine & Novolac Vinyl Ester Resins. Tensile strength delta is +3 MPa (+3.6%) and thermal HDT delta is +3 °C, making them interchangeable with post-cure temperature and viscosity flow adjustments.
Side-by-Side ASTM Mechanical, Thermal, Rheological & Pricing Delta
| ASTM Parameter | A: INEOS Derakane Signia 411-350 Low-Odor Marine Vinyl Ester (INEOS Composites US) | B: Interplastic CoREZYN CORVE8740 Urethane-Modified VE (Interplastic Corp) | Engineering Delta (A vs. B) |
|---|---|---|---|
| OEM Manufacturer & SKU | INEOS Composites US • INE-DRK-SIGNIA-DR | Interplastic Corp • IPC-CORVE8740 | Cross-Brand OEM Equivalent |
| ASTM D638 Tensile Strength (MPa / PSI) | 86 MPa (12,473 psi) | 83 MPa (12,038 psi) | +3 MPa (+3.6 %) |
| 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) | 152 MPa | 145 MPa | +7 MPa (+4.8 %) |
| ASTM D2583 Barcol Hardness | 38 | 38 | 0 Barcol |
| ASTM D2196 Brookfield Viscosity @ 25°C | 350 cPs | 310 cPs | +40 cPs (+12.9 %) |
| Gel Time @ 25°C (Minutes) | 30 min | 28 min | +2 min |
| ASTM D792 Specific Density (kg/m³) | 1140 kg/m³ | 1130 kg/m³ | +10 kg/m³ |
| US DOT 49 CFR & TDG Hazmat Class | Class 3 Flammable Liquid (UN1866) | Class 3 Flammable Liquid (UN1866) | Identical (UN1866) |
| Unit Price ($/kg USD) & Pack Price | $11.4/kg • $2,337 (205 kg Steel Drum) | $11.1/kg • $2,276 (205 kg Drum) | +0.3 $/kg (+2.7 %) |
| US Stocking Warehouses | Dublin, OH • Houston, TX • Jacksonville, FL | Tampa, FL • Houston, TX • Minneapolis, MN | 1–3 Days LTL Dispatch |
Both matrices cross-link via free-radical polymerization using 1.25%–2.0% MEKP (Methyl Ethyl Ketone Peroxide, UN3105) or Cumene Hydroperoxide (CHP) with Cobalt Octoate promoter. Low-hydrogen-peroxide MEKP (e.g., Norox MEKP-925H) is recommended to eliminate micro-foaming.
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 Class 3 Flammable Liquid (UN Number: UN1866). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105).
Engineering FAQ: INEOS Derakane Signia 411-350 Low-Odor Marine Vinyl Ester vs. Interplastic CoREZYN CORVE8740 Urethane-Modified VE
1. Is INEOS Derakane Signia 411-350 Low-Odor Marine Vinyl Ester a direct drop-in equivalent for Interplastic CoREZYN CORVE8740 Urethane-Modified VE?▼
INEOS Derakane Signia 411-350 Low-Odor Marine Vinyl Ester (INEOS Composites US) and Interplastic CoREZYN CORVE8740 Urethane-Modified VE (Interplastic Corp) achieve a 68% ASTM engineering compatibility score in Marine & Novolac Vinyl Ester Resins. Tensile strength delta is +3 MPa (+3.6%) and thermal HDT delta is +3 °C, making them interchangeable with post-cure temperature and viscosity flow adjustments.
2. What is the ASTM D638 Tensile Strength and ASTM D648 HDT difference between INEOS Derakane Signia 411-350 Low-Odor Marine Vinyl Ester and Interplastic CoREZYN CORVE8740 Urethane-Modified VE?▼
INEOS Derakane Signia 411-350 Low-Odor Marine Vinyl Ester (INEOS Composites US) delivers ASTM D638 Tensile Strength of 86 MPa (12,473 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 +3 MPa (+3.6 %) tensile and +3 °C HDT.
3. Do INEOS Derakane Signia 411-350 Low-Odor Marine Vinyl Ester and Interplastic CoREZYN CORVE8740 Urethane-Modified VE use the same catalyst or hardener cure system?▼
Both matrices cross-link via free-radical polymerization using 1.25%–2.0% MEKP (Methyl Ethyl Ketone Peroxide, UN3105) or Cumene Hydroperoxide (CHP) with Cobalt Octoate promoter. Low-hydrogen-peroxide MEKP (e.g., Norox MEKP-925H) is recommended to eliminate micro-foaming. 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 INEOS Derakane Signia 411-350 Low-Odor Marine Vinyl Ester and Interplastic CoREZYN CORVE8740 Urethane-Modified VE?▼
Identical Hazmat Logistics Profile: Both SKUs ship under US DOT 49 CFR & Transport Canada TDG as Class 3 Flammable Liquid (UN Number: UN1866). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105). In US B2B distribution, INEOS Derakane Signia 411-350 Low-Odor Marine Vinyl Ester is priced at $2,337 per 205 kg Steel Drum ($11.4/kg) vs. $2,276 per 205 kg Drum ($11.1/kg) for Interplastic CoREZYN CORVE8740 Urethane-Modified VE (delta: +0.3 USD/kg).
Related Drop-In Comparisons in Marine & Novolac Vinyl Ester Resins
INEOS Derakane Signia 411-350 Low-Odor Marine Vinyl Ester (INEOS Composites US) 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).