Prymax GRP Primer

Prymax GRP Primer is a polyurethane bonding primer designed to give polyester resin and fibreglass a strong, reliable key when laminating onto wood, concrete or metal. Its moisture-curing formula means it can still be applied in damp (though not wet) conditions and at lower temperatures, making it a practical choice for repair and construction work where perfect drying conditions aren't always guaranteed. Once partially cured, Prymax chemically bonds with polyester resin, so GRP laminate adheres firmly even to porous or metal substrates that would otherwise be difficult to coat directly.

Available in 1kg, 2.5kg, 5kg and 20kg containers to suit everything from small repairs to larger construction and roofing projects, Prymax GRP Primer is a trusted first step before laminating with fibreglass matting and resin.