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International Interfill 833 Fast Hardener 2.5L YAA815 Epoxy Filler Curing Agent
International Interfill 833 Fast Hardener 2.5L YAA815 Epoxy Filler Curing Agent
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Interfill 833 Fast Hardener (2.5L) - YAA815
Premium Epoxy Finishing Filler Curing Agent
International Interfill 833 Fast Hardener (YAA815) is a high-performance curing agent designed specifically for use with Interfill 833 Base. This fast-cure version is engineered for professional marine applications where rapid turnaround and ease of sanding are critical. It is the ideal choice for correcting minor surface defects and achieving a smooth, pinhole-free finish before the application of final topcoats.
Key Features
- ✔ Rapid Curing: Sandable in just 6 hours at 23°C.
- ✔ Superior Sandability: Fine grade extenders ensure an extra smooth result.
- ✔ Easy Mixing: Simple 1:1 mix ratio by volume with YAA813 base.
- ✔ Versatile: Suitable for use above and below the waterline.
Technical Specs
| SKU/MPN: | YAA815/2.5NE |
| Volume: | 2.5 Litres |
| Mix Ratio: | 1:1 (By Volume) |
| Pot Life: | 30 Mins @ 23°C |
| Sandable: | 6 Hours @ 23°C |
| Max Thickness: | 3.0mm (Per Layer) |
Compatibility / Fitment Guide
| Application Type | Required Base/Primer | Notes |
|---|---|---|
| Fine Filling | Interfill 833 Base (YAA813) | Must be mixed 1:1 for curing. |
| Substrate Prep | Interfill 830 Profiling Filler | Apply over sanded Interfill 830. |
| Composite/GRP | Interprime 820 / 880 | Priming required for bare GRP. |
OEM Cross Reference
| Manufacturer | International Yacht Paint (AkzoNobel) |
| Hardener Code | YAA815 |
| Standard Hardener Alt | YAA814 |
| Associated Base | YAA813 |
Questions & Answers
Is this a genuine original part?
This is a premium quality aftermarket replacement part, manufactured to meet or exceed original equipment (OE) standards for fitment and performance in the marine industry.
How do I know if it is compatible?
Check the MPN YAA815. This hardener is specifically for Interfill 833. If you are using Interfill 830, you require the 830-series hardener (YAA868/YAA869).
Can this be applied to bare aluminum?
Interfill 833 should not be applied directly to bare metal. Aluminum and steel substrates must be primed with an appropriate epoxy primer like Interprime 820 before application.
Note: Please verify your required mix ratio and curing agent code against your product base before purchasing. For use at temperatures between 10°C and 35°C.
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