Gurit Prime 37 Infusion Epoxy System vs. Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy
Gurit Prime 37 Infusion Epoxy System (Gurit) and Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy (Hexion) achieve a 85% ASTM engineering compatibility score in Structural Infusion & Laminating Epoxy Systems. Tensile strength delta is -4 MPa (-4.8%) and thermal HDT delta is -27 °C, making them interchangeable with post-cure temperature and viscosity flow adjustments.
Side-by-Side ASTM Mechanical, Thermal, Rheological & Pricing Delta
| ASTM Parameter | A: Gurit Prime 37 Infusion Epoxy System (Gurit) | B: Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy (Hexion) | Engineering Delta (A vs. B) |
|---|---|---|---|
| OEM Manufacturer & SKU | Gurit • GUR-PRM37-200KG | Hexion • HEX-EPON828-DR | Cross-Brand OEM Equivalent |
| ASTM D638 Tensile Strength (MPa / PSI) | 79 MPa (11,458 psi) | 83 MPa (12,038 psi) | -4 MPa (-4.8 %) |
| ASTM D648 Heat Deflection Temp (HDT °C / °F) | 88 °C (190 °F) | 115 °C (239 °F) | -27 °C (Verify Post-Cure) |
| ASTM D790 Flexural Strength (MPa) | 124 MPa | 127 MPa | -3 MPa (-2.4 %) |
| ASTM D2583 Barcol Hardness | 42 | 42 | 0 Barcol |
| ASTM D2196 Brookfield Viscosity @ 25°C | 245 cPs | 12000 cPs | -11755 cPs (-98 %) |
| Gel Time @ 25°C (Minutes) | 48 min | 52 min | -4 min |
| ASTM D792 Specific Density (kg/m³) | 1140 kg/m³ | 1145 kg/m³ | -5 kg/m³ |
| US DOT 49 CFR & TDG Hazmat Class | Class 9 Environmentally Hazardous (UN3082) | Class 9 Environmentally Hazardous (UN3082) | Identical (UN3082) |
| Unit Price ($/kg USD) & Pack Price | $14.8/kg • $2,960 (200 kg Drum Kit) | $11.8/kg • $2,360 (200 kg Drum Kit) | +3 $/kg (+25.4 %) |
| US Stocking Warehouses | Tampa, FL • Rhode Island, RI • Seattle, WA | Bay City, MI • Tampa, FL • Seattle, WA | 1–3 Days LTL Dispatch |
Both systems utilize stoichiometric Amine / Polyetheramine Hardeners. Verify exact mix ratio by weight (pbw) on the batch TDS before metering—never substitute hardeners across manufacturers without DSC glass-transition (Tg) qualification.
Post-Cure Schedule Adjustment Advised: ASTM D648 HDT differs by 27 °C (88 °C vs. 115 °C). For elevated-temperature tooling or dark-colored marine hulls, perform a 4–6 hour post-cure ramp at 60–80 °C (140–176 °F) to lock in full cross-link density.
Identical Hazmat Logistics Profile: Both SKUs ship under US DOT 49 CFR & Transport Canada TDG as Class 9 Environmentally Hazardous (UN Number: UN3082). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105).
Engineering FAQ: Gurit Prime 37 Infusion Epoxy System vs. Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy
1. Is Gurit Prime 37 Infusion Epoxy System a direct drop-in equivalent for Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy?▼
Gurit Prime 37 Infusion Epoxy System (Gurit) and Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy (Hexion) achieve a 85% ASTM engineering compatibility score in Structural Infusion & Laminating Epoxy Systems. Tensile strength delta is -4 MPa (-4.8%) and thermal HDT delta is -27 °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 Gurit Prime 37 Infusion Epoxy System and Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy?▼
Gurit Prime 37 Infusion Epoxy System (Gurit) delivers ASTM D638 Tensile Strength of 79 MPa (11,458 psi) and ASTM D648 HDT of 88 °C, whereas Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy (Hexion) delivers 83 MPa (12,038 psi) and HDT of 115 °C. The net delta is -4 MPa (-4.8 %) tensile and -27 °C HDT.
3. Do Gurit Prime 37 Infusion Epoxy System and Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy use the same catalyst or hardener cure system?▼
Both systems utilize stoichiometric Amine / Polyetheramine Hardeners. Verify exact mix ratio by weight (pbw) on the batch TDS before metering—never substitute hardeners across manufacturers without DSC glass-transition (Tg) qualification. Post-Cure Schedule Adjustment Advised: ASTM D648 HDT differs by 27 °C (88 °C vs. 115 °C). For elevated-temperature tooling or dark-colored marine hulls, perform a 4–6 hour post-cure ramp at 60–80 °C (140–176 °F) to lock in full cross-link density.
4. How do US DOT 49 CFR Hazmat shipping rules and B2B drum/pack prices compare between Gurit Prime 37 Infusion Epoxy System and Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy?▼
Identical Hazmat Logistics Profile: Both SKUs ship under US DOT 49 CFR & Transport Canada TDG as Class 9 Environmentally Hazardous (UN Number: UN3082). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105). In US B2B distribution, Gurit Prime 37 Infusion Epoxy System is priced at $2,960 per 200 kg Drum Kit ($14.8/kg) vs. $2,360 per 200 kg Drum Kit ($11.8/kg) for Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy (delta: +3 USD/kg).
Related Drop-In Comparisons in Structural Infusion & Laminating Epoxy Systems
Gurit Prime 37 Infusion Epoxy System (Gurit) and Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy (Hexion) 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).