Polycor Gelfast RAL7023 Concrete Grey 5.5kg

Gelfast is a high quality, isophthalic, and pigmented, Lloyds Approved Gelcoat. It comes pre pigmented by CFS Fibreglass for rapid delivery times from 40 standard colours.

Screen colour samples are a guide only as computer displays and printers can give different results.

The Polycor Gelfast RAL7023 Concrete Grey Gelcoat 5.5kg is a professionally-formulated pigmented polyester gelcoat that brings a smooth, neutral grey finish to smaller fibreglass and GRP tasks. Its RAL7023 Concrete Grey tone is particularly popular for modern marine craft, composite panels and areas where understated colour and surface integrity are important.

This 5.5 kg pack size makes it ideal for repair work, panel refinishing, patch jobs and bespoke GRP projects where a larger batch would be unnecessary. Built on an isophthalic polyester resin base, this gelcoat delivers better moisture performance and UV resistance than basic gelcoat formulas, helping finished surfaces stay true to colour and stand up to environmental exposure.

Easy to apply with brush, roller or spray when used with the correct catalyst, this gelcoat produces a uniform finish with controlled build-up that blends well into existing work. Whether you’re touching up hull sections, resurfacing panel areas or adding a fresh coat to composite parts, Polycor Gelfast RAL7023 Concrete Grey Gelcoat 5.5kg offers a practical, professional-quality solution for fibreglass surface finishing.