A 20kg tin of GRP 505 Top Coat serves as the second layer in the GRP Roof 1010 system, providing a dark grey finish and requiring Restec Liquid Catalyst for application. GRP 505 stands out as an economically efficient, general-purpose polyester resin, characterised by its pre-acceleration and thixotropic nature. It's crafted to a consistent specification, offering a reliable alternative to other contractor-grade resins.
