High Performance Vinylester Spray Tooling Gelcoat


Crystic Gelcoat 15PA is a pre-accelerated spray gelcoat specially formulated from a vinyl ester base resin and is
available in a restricted range of colours. The information contained in this leaflet also applies to pigmented


Crystic Gelcoat 15PA is designed for use in the manufacture of high quality, FRP composite tooling.

Features and Benefits

Crystic Gelcoat 15PA is heat resistant with high impact strength and good resistance to chemical attack. It is
extremely resilient and can be polished to a high gloss. With its unique combination of properties, Crystic Gelcoat
15PA can help to overcome the problems of surface defects often encountered in FRP composite tooling. It is
particularly effective against a phenomenon which has come to be known as ‘water marking’.

This manifests itself after first use of the mould as follows:

combinations of gloss and matt areas in patches on the mould surface
surface undulations caused by shrink-back
a permanent defect which returns after apparent rectification and removal
Crystic Gelcoat 15PA also reduces general reinforcement print-through.