Epoxy lamination resin hardener is a chemical agent used to cure and strengthen epoxy resin during the lamination process It helps the resin transform from a liquid to a solid durable material When mixed properly with the epoxy resin the hardener creates a strong bond that improves the structural integrity clarity and resistance of the final product It is commonly used in fiberglass work boat building composite structures and various craft applications The hardener ensures proper curing enhances surface finish and provides long lasting durability