Gurit Ampreg 36 High-Tg Aerospace & Marine Epoxy vs. Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy
Gurit Ampreg 36 High-Tg Aerospace & Marine Epoxy (Gurit) and Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy (Hexion) achieve a 97% ASTM engineering compatibility score in Structural Infusion & Laminating Epoxy Systems. Tensile strength delta is +1 MPa (+1.2%) 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: Gurit Ampreg 36 High-Tg Aerospace & Marine Epoxy (Gurit) | B: Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy (Hexion) | Engineering Delta (A vs. B) |
|---|---|---|---|
| OEM Manufacturer & SKU | Gurit • GUR-AMP36-200KG | Hexion • HEX-EPON828-DR | Cross-Brand OEM Equivalent |
| ASTM D638 Tensile Strength (MPa / PSI) | 84 MPa (12,183 psi) | 83 MPa (12,038 psi) | +1 MPa (+1.2 %) |
| ASTM D648 Heat Deflection Temp (HDT °C / °F) | 118 °C (244 °F) | 115 °C (239 °F) | +3 °C (Direct Thermal Match) |
| ASTM D790 Flexural Strength (MPa) | 128 MPa | 127 MPa | +1 MPa (+0.8 %) |
| ASTM D2583 Barcol Hardness | 42 | 42 | 0 Barcol |
| ASTM D2196 Brookfield Viscosity @ 25°C | 510 cPs | 12000 cPs | -11490 cPs (-95.8 %) |
| Gel Time @ 25°C (Minutes) | 52 min | 52 min | 0 min |
| ASTM D792 Specific Density (kg/m³) | 1145 kg/m³ | 1145 kg/m³ | 0 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 | $17.8/kg • $3,560 (200 kg Drum Kit) | $11.8/kg • $2,360 (200 kg Drum Kit) | +6 $/kg (+50.8 %) |
| US Stocking Warehouses | Bay City, MI • Tampa, FL • 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.
Direct Drop-In Qualified: Thermal deflection (ASTM D648 HDT) differs by only 3 °C (118 °C vs. 115 °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 9 Environmentally Hazardous (UN Number: UN3082). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105).
Engineering FAQ: Gurit Ampreg 36 High-Tg Aerospace & Marine Epoxy vs. Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy
1. Is Gurit Ampreg 36 High-Tg Aerospace & Marine Epoxy a direct drop-in equivalent for Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy?▼
Gurit Ampreg 36 High-Tg Aerospace & Marine Epoxy (Gurit) and Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy (Hexion) achieve a 97% ASTM engineering compatibility score in Structural Infusion & Laminating Epoxy Systems. Tensile strength delta is +1 MPa (+1.2%) 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 Gurit Ampreg 36 High-Tg Aerospace & Marine Epoxy and Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy?▼
Gurit Ampreg 36 High-Tg Aerospace & Marine Epoxy (Gurit) delivers ASTM D638 Tensile Strength of 84 MPa (12,183 psi) and ASTM D648 HDT of 118 °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 +1 MPa (+1.2 %) tensile and +3 °C HDT.
3. Do Gurit Ampreg 36 High-Tg Aerospace & Marine Epoxy 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. Direct Drop-In Qualified: Thermal deflection (ASTM D648 HDT) differs by only 3 °C (118 °C vs. 115 °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 Gurit Ampreg 36 High-Tg Aerospace & Marine Epoxy 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 Ampreg 36 High-Tg Aerospace & Marine Epoxy is priced at $3,560 per 200 kg Drum Kit ($17.8/kg) vs. $2,360 per 200 kg Drum Kit ($11.8/kg) for Hexion EPON Resin 828 Unmodified Bisphenol-A Epoxy (delta: +6 USD/kg).
Related Drop-In Comparisons in Structural Infusion & Laminating Epoxy Systems
Gurit Ampreg 36 High-Tg Aerospace & Marine Epoxy (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).