Quick facts
- Detailed TDS viscosity
- 700 cPs at 25 C
- Catalogue viscosity
- 900 cPs
- Detailed TDS density
- 1.15 g/cm3
- Catalogue density
- 1.16 g/cm3
Use the detailed TDS as the product-data starting point
The current detailed TDS identifies an epoxy general-purpose grade for fibreglass reinforcement and lamination. It publishes 700 cPs viscosity at 25 C, 35-45 minute gel time at 25 C, 1.15 g/cm3 specific gravity, 75 C HDT / thermal data, flash point above 100 C, 12-month unopened shelf life, 20-30 C storage.
These are supplied-resin and commercial data points. The TDS states that values are typical and not guaranteed. They should be reviewed with the full document and actual purchase requirement.
Keep the catalogue record visible
The catalogue labels the same Fiberglass Epoxy Resin entry as Bisphenol-A Epoxy Resin and lists 900 cPs viscosity, 35 minutes as Gel Time / Pot Life, 1.16 specific gravity, structural laminates and filament winding. The detailed TDS does not use the same chemistry wording or identical figures.
The repository provides no explanation for these differences. This guide does not average values, silently choose a chemistry label, or state that the detailed TDS and catalogue are equivalent specifications. State the exact document reference during enquiry.
Read thermal and broad performance wording cautiously
The TDS lists 75 C under HDT / thermal data but does not give a test specimen, test method or continuous-service limit. The figure is not presented here as an operating-temperature recommendation.
No numerical mechanical test table, adhesion test, shrinkage result, UV or weathering result, chemical-compatibility chart, concentration limit or finished-laminate approval is published. The document's broad descriptive language is not converted into a quantified component-performance claim.
Supplied data does not equal finished composite data
A finished fiberglass laminate or component can depend on the confirmed resin-and-hardener system, reinforcement, laminate construction, cure state, thickness, geometry and tested configuration. These decisions can change the relevant finished performance.
Do not use a supplied-resin viscosity, density or thermal entry as a finished boat, vehicle, electrical or structural-component rating. This site does not publish a laminate design or guarantee for those contexts.
Prepare a document-specific enquiry
Include the TDS or catalogue record being evaluated, the finished composite component, whether resin only or a complete system is required, reinforcement form if known, required published technical property, quantity, packaging, delivery location and documentation need.
This focuses a procurement discussion while avoiding an unsupported technical reconciliation, a hardener recipe or a fabrication instruction.
Key properties
| Published item | Detailed TDS | Catalogue |
|---|---|---|
| Resin wording | Epoxy | Bisphenol-A Epoxy Resin |
| Product role | General-purpose epoxy system for fibreglass reinforcement and lamination | Epoxy system for structural fiberglass laminating |
| Processing / application wording | Hand lay-up and lamination; fabric reinforcement | Structural laminates and filament winding |
| Viscosity | 700 cPs at 25 C | 900 cPs |
| Gel / pot-life wording | 35-45 minutes at 25 C, gel time | 35 minutes, Gel Time / Pot Life |
| Specific gravity | 1.15 g/cm3 | 1.16 g/cm3 |
The repository does not explain these differences. This table keeps the two records visible and does not average, reconcile or treat either as a finished-composite specification.
Frequently asked questions
Which Fiberglass Epoxy specifications are published?
The detailed TDS publishes epoxy type, general-purpose grade, room-temperature cure, hand lay-up and lamination, 700 cPs viscosity at 25 C, 35-45 minute gel time at 25 C, 1.15 g/cm3 density, 75 C HDT / thermal data, flash point above 100 C, storage, shelf life.
Why are TDS and catalogue values different?
The catalogue uses a Bisphenol-A epoxy label, 900 cPs viscosity, 35 minutes as Gel Time / Pot Life and 1.16 specific gravity. The repository does not explain the differences, so this guide does not merge the records or infer a new specification.
Does the published 75 C HDT establish a continuous service temperature?
No. The TDS lists 75 C as HDT / thermal data but does not publish a test context or a continuous-service temperature limit. This guide does not convert it into one.
Are tensile or flexural laminate results published?
No numerical tensile, flexural, compressive, impact, elongation, hardness or finished-laminate test values were found in the Fiberglass Epoxy TDS or catalogue. Broad marketing wording is not treated as a test result.

