FRP Pigment Compatibility with Polyester Resin, Vinyl Ester and Gelcoat

Use the published system context as a starting point

The FRP Polyester Pigment product information publishes compatibility context for unsaturated polyester resin, vinyl ester and gelcoat systems. This helps frame the right technical question, but it is not a blanket statement that every pigment is suitable for every product within those families.

Before a requirement is finalised, identify the specific base product, component and finished-appearance requirement. Then review the current published product data and discuss any unresolved compatibility point with the supplier.

GP, Lamination and other polyester-resin discussions

GP Clear, GP White, GP Yellow and Lamination Resin are separate published product roles within the site. A buyer can use those pages to understand the underlying resin requirement, but should not treat a product-family name as a substitute for checking the actual material system. The pigment conversation should include the base product under review.

Gelcoat and Vinyl Ester discussions

The pigment product publishes gelcoat and vinyl ester system context. For a visible mould-side surface, use the Gelcoat page and its TDS to establish the surface-finish role first. For a Vinyl Ester requirement, review its own product information. Then state the component and appearance requirement in the pigment enquiry so the discussion remains product-specific.

A practical compatibility-check list

Record the specific resin or gelcoat product, FRP component, colour reference or appearance requirement, expected quantity, delivery location and any relevant purchase specification. Avoid relying on a supplier, product family or prior project alone as proof that a pigment system is appropriate for a different component or base material.

Frequently asked questions