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Sentinel Hardener

Sentinel Hardener sizes:
5kg | 1kg in dispensing bottle
Sentinel Hardener enables both Resin & Topcoat to cure. You need to add at a rate of between 1 & 4% by weight depending on the weather conditions.

GRP Materials Calculator


Sentinel GRP Installation Guide
Our Sentinel GRP installation guide is a comprehensive step by step booklet including our full range of trims and an easy to follow estimating materials guide.