Hexcel HexForce 7500 10 oz Boatbuilding Woven E-Glass Cloth vs. Hexcel HexForce 7781 8-Harness Satin Aerospace E-Glass
Hexcel HexForce 7500 10 oz Boatbuilding Woven E-Glass Cloth (Hexcel Corporation) and Hexcel HexForce 7781 8-Harness Satin Aerospace E-Glass (Hexcel Corporation) achieve a 94.7% ASTM engineering compatibility score in Carbon Fiber Fabrics (3K / 6K / 12K), Spread-Tow & Prepregs. Tensile strength delta is -80 MPa (-11.6%) and thermal HDT delta is matched, making them qualified for direct drop-in substitution under standard cure schedules.
Side-by-Side ASTM Mechanical, Thermal, Rheological & Pricing Delta
| ASTM Parameter | A: Hexcel HexForce 7500 10 oz Boatbuilding Woven E-Glass Cloth (Hexcel Corporation) | B: Hexcel HexForce 7781 8-Harness Satin Aerospace E-Glass (Hexcel Corporation) | Engineering Delta (A vs. B) |
|---|---|---|---|
| OEM Manufacturer & SKU | Hexcel Corporation • HXL-HF7500-60 | Hexcel Corporation • HXL-HF7781-50 | Same OEM Portfolio |
| ASTM D638 Tensile Strength (MPa / PSI) | 610 MPa (88,473 psi) | 690 MPa (100,076 psi) | -80 MPa (-11.6 %) |
| ASTM D648 Heat Deflection Temp (HDT °C / °F) | N/A | N/A | Ambient / N/A |
| ASTM D790 Flexural Strength (MPa) | 760 MPa | 840 MPa | -80 MPa (-9.5 %) |
| ASTM D2583 Barcol Hardness | N/A | N/A | N/A |
| ASTM D2196 Brookfield Viscosity @ 25°C | Solid Reinforcement / Core | Solid Reinforcement / Core | Solid State |
| Gel Time @ 25°C (Minutes) | N/A | N/A | N/A |
| ASTM D792 Specific Density (kg/m³) | 2560 kg/m³ | 2560 kg/m³ | 0 kg/m³ |
| US DOT 49 CFR & TDG Hazmat Class | Non-Regulated Industrial Fiber (N/A) | Non-Regulated Industrial Fiber (N/A) | Identical (N/A) |
| Unit Price ($/kg USD) & Pack Price | $9.8/kg • $980 (100 kg Roll (50 in)) | $14.2/kg • $1,420 (100 kg Roll (50 in)) | -4.4 $/kg (-31 %) |
| US Stocking Warehouses | Phenix City, AL • Tampa, FL • Minneapolis, MN | Phenix City, AL • Tampa, FL • Minneapolis, MN | 1–3 Days LTL Dispatch |
Companion process stack: Low-Viscosity Infusion Epoxy (Gurit Prime 37 / Hexion RIMR 135 / Araldite LY 1564) + Stoichiometric Amine Hardener. Follow SIZE COMPATIBILITY: Use Epoxy-compatible silane sizing with Structural Epoxy Resins (approx. 55:45 fiber-to-resin weight ratio in vacuum infusion). ITAR/EAR export screening applies.
Direct Drop-In Qualified: Thermal deflection (ASTM D648 HDT) differs by only 0 °C (N/A °C vs. N/A °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 Non-Regulated Industrial Fiber (UN Number: N/A). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105).
Engineering FAQ: Hexcel HexForce 7500 10 oz Boatbuilding Woven E-Glass Cloth vs. Hexcel HexForce 7781 8-Harness Satin Aerospace E-Glass
1. Is Hexcel HexForce 7500 10 oz Boatbuilding Woven E-Glass Cloth a direct drop-in equivalent for Hexcel HexForce 7781 8-Harness Satin Aerospace E-Glass?▼
Hexcel HexForce 7500 10 oz Boatbuilding Woven E-Glass Cloth (Hexcel Corporation) and Hexcel HexForce 7781 8-Harness Satin Aerospace E-Glass (Hexcel Corporation) achieve a 94.7% ASTM engineering compatibility score in Carbon Fiber Fabrics (3K / 6K / 12K), Spread-Tow & Prepregs. Tensile strength delta is -80 MPa (-11.6%) and thermal HDT delta is matched, 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 Hexcel HexForce 7500 10 oz Boatbuilding Woven E-Glass Cloth and Hexcel HexForce 7781 8-Harness Satin Aerospace E-Glass?▼
Hexcel HexForce 7500 10 oz Boatbuilding Woven E-Glass Cloth (Hexcel Corporation) delivers ASTM D638 Tensile Strength of 610 MPa (88,473 psi) and ASTM D648 HDT of N/A °C, whereas Hexcel HexForce 7781 8-Harness Satin Aerospace E-Glass (Hexcel Corporation) delivers 690 MPa (100,076 psi) and HDT of N/A °C. The net delta is -80 MPa (-11.6 %) tensile and N/A HDT.
3. Do Hexcel HexForce 7500 10 oz Boatbuilding Woven E-Glass Cloth and Hexcel HexForce 7781 8-Harness Satin Aerospace E-Glass use the same catalyst or hardener cure system?▼
Companion process stack: Low-Viscosity Infusion Epoxy (Gurit Prime 37 / Hexion RIMR 135 / Araldite LY 1564) + Stoichiometric Amine Hardener. Follow SIZE COMPATIBILITY: Use Epoxy-compatible silane sizing with Structural Epoxy Resins (approx. 55:45 fiber-to-resin weight ratio in vacuum infusion). ITAR/EAR export screening applies. Direct Drop-In Qualified: Thermal deflection (ASTM D648 HDT) differs by only 0 °C (N/A °C vs. N/A °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 Hexcel HexForce 7500 10 oz Boatbuilding Woven E-Glass Cloth and Hexcel HexForce 7781 8-Harness Satin Aerospace E-Glass?▼
Identical Hazmat Logistics Profile: Both SKUs ship under US DOT 49 CFR & Transport Canada TDG as Non-Regulated Industrial Fiber (UN Number: N/A). Note 49 CFR § 177.848 segregation if ordering with Class 5.2 Organic Peroxides (UN3105). In US B2B distribution, Hexcel HexForce 7500 10 oz Boatbuilding Woven E-Glass Cloth is priced at $980 per 100 kg Roll (50 in) ($9.8/kg) vs. $1,420 per 100 kg Roll (50 in) ($14.2/kg) for Hexcel HexForce 7781 8-Harness Satin Aerospace E-Glass (delta: -4.4 USD/kg).
Related Drop-In Comparisons in Carbon Fiber Fabrics (3K / 6K / 12K), Spread-Tow & Prepregs
Hexcel HexForce 7500 10 oz Boatbuilding Woven E-Glass Cloth (Hexcel Corporation) and Hexcel HexForce 7781 8-Harness Satin Aerospace E-Glass (Hexcel Corporation) 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).