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International Interfill 833 Fine Filler Standard Hardener 2.5L YAA814/2.5NE

International Interfill 833 Fine Filler Standard Hardener 2.5L YAA814/2.5NE

Regular price £168.59 GBP
Regular price Sale price £168.59 GBP
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Interfill 833 Standard Hardener 2.5L

Premium Quality Curing Agent - SKU: YAA814/2.5NE

International Interfill 833 Standard Hardener is the essential curing component for the Interfill 833 epoxy finishing system. Specifically engineered for marine professional use, this standard-speed curing agent provides the necessary working time to achieve an extra-smooth, pinhole-free finish on large surface areas. It is the ideal choice for correcting minor surface defects and ensuring a perfect substrate for final priming and topcoating.

RELIABILITY: Built to meet or exceed OEM specifications for high-strength, impact-resistant marine surface fairing and finishing.

Key Features

  • ✔ Extended Pot Life for Large Areas
  • ✔ Superior Fine-Grained Finish
  • ✔ Excellent Sanding Properties
  • ✔ High Impact & Water Resistance
  • ✔ Easy 1:1 Mix Ratio (by Volume)

Technical Specs

Volume: 2.5 Litres
Mix Ratio: 1:1 (with YAA813 Base)
Pot Life: 50 Mins @ 23°C
Sandable: 17 Hours @ 23°C
Solids: 100% Volume Solids
Application: Trowel / Knife / Batten

Compatibility / Fitment Guide

Substrate Type Surface Application Required Base
GRP / Composite Above & Below Waterline Interfill 833 Base (YAA813)
Steel / Aluminium Must be applied over primer Interfill 833 Base (YAA813)
Wood / Cast Iron Fine Finishing / Defect Repair Interfill 833 Base (YAA813)

OEM Cross Reference

Manufacturer Part Number (MPN) YAA814/2.5NE
International Paint Reference YAA814 (Standard Curing Agent)
Alternative Packaging Code YAA814/2.5CE

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.

How do I know if it is compatible?

We recommend checking the SKU/MPN and Cross Reference list provided above. This hardener must be mixed with the Interfill 833 Base (YAA813) to function correctly.

When should I use the Standard Hardener over the Fast version?

Standard hardener is preferred for applications over larger surface areas where a longer pot life is required to ensure a smooth finish before the product begins to set, especially in temperatures between 15°C and 25°C.

Note: Please verify your original part number against the references above before purchasing. This product is for use as Part B of a two-component system. For professional marine results at 4boats.co.uk.

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