Product overview
Tooling epoxy for prepreg moulds and heat-resistant tools
TECHNIREZ R2600 is a solvent-free liquid epoxy used with H2403 or H2409. It is suitable for casting, laminating and infusion of jigs, tooling, prepreg moulds and vacuum-forming tools that require high thermal performance after post-cure.
Key features
- Epoxy system for casting, laminating and infusion
- H2403 mixes at 100:25; H2409 at 100:35 by weight
- Mixed viscosity of 510 or 880 mPa·s at 25°C
- Typical Tg up to 180°C with H2409 after suitable post-cure
- For prepreg moulds, jigs and vacuum-forming tools
- R2600 may crystallise; maintain storage at a minimum of 25°C
Typical processing data
| Property | H2403 | H2409 |
|---|---|---|
| Resin : hardener ratio by weight | 100 : 25 | 100 : 35 |
| Pot life, 100 g at 25°C | 232 min | 680-710 min |
| Demould schedule | 24 h + 8 h at 50°C | 24 h + 8 h at 50°C |
| Mixed viscosity at 25°C | 510 mPa·s | 880 mPa·s |
| Shore D hardness | 85 | 88 |
Tg by post-cure schedule
| Schedule | H2403 | H2409 |
|---|---|---|
| 8 h at 50°C | 75°C | 75°C |
| + 3 h at 90°C | 112°C | 111°C |
| + 3 h at 120°C | 143°C | 132°C |
| + 2 h at 150°C | 157°C | 155°C |
| Complete schedule to 200°C | 160°C | 177°C |
| Complete schedule to 220°C | 160°C | 180°C |
Request TDS / SDS
Current documents are provided by GKFRP upon request for the correct product grade and application.
Storage note
If crystallisation occurs, the TDS instructs heating R2600 at 60-80°C for approximately 12 hours until fully re-liquefied. Values are typical data from the ATL TDS dated 12 July 2018; verify the current document before production.

