Mould Release & Surface Preparation

Mould Release Wax

Mould release wax is an essential surface preparation compound used to create a clean, reliable barrier between the mould and the composite laminate. It ensures smooth demoulding, minimises part distortion, and protects the mould surface from resin build-up. Available in single-release and multi-release grades, this wax is formulated for excellent coverage, thermal stability, and compatibility with polyester, vinyl ester, and epoxy resins. Whether applied to new, seasoned, or reconditioned moulds, it enhances surface finish, reduces post-processing time, and supports consistent production results in hand lay-up, spray-up, and infusion applications.

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Polyvinyl Alcohol (PVA) Glazing Agent

Polyvinyl Alcohol (PVA) glazing agent is a water-soluble, film-forming solution designed to enhance mould release in intricate, complex, or first-use moulds. It acts as a reliable barrier between the mould surface and the resin, preventing air inhibition and ensuring a clean, consistent release. Particularly effective in cases where wax alone may not suffice, PVA is an essential companion for moulds that are detailed, expensive, or newly fabricated—minimizing surface defects and reducing the risk of bonding. Once cured, the PVA film can be easily washed away with water, making post-mould cleanup quick and efficient.

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Paraffin Wax Solution

Paraffin wax solution is a versatile surface additive commonly used in air-inhibited polyester and vinyl ester systems, particularly in open-mould processes. When added to gelcoats or final resin layers, it migrates to the surface during curing, forming a thin waxy film that blocks oxygen exposure, thereby eliminating surface tackiness. This promotes a fully cured, sandable finish—essential for secondary bonding, painting, or polishing. It is widely used in hand lay-up, spray-up, and gelcoat sealing operations, helping ensure a complete cure and smoother workflow without post-curing complications.