Grey Sanding Gelcoat 20kg

Upgrade your composite finishing with our industrial-grade Grey Sanding Gel Coat. Specifically engineered as a high-performance base for FRP (fibreglass) parts intended to be painted, this gel coat is a game-changer for NZ workshops. The neutral grey colour acts as a built-in guide coat, making surface imperfections easy to spot and level.

Why Choose This Gel Coat?

Easy Sanding: Formulated to be "softer" than cosmetic gel coats, it sands back quickly to a smooth finish, saving you hours of labour.

High-Build: Provides 5–7% more cured film thickness than standard products, hiding fibre print-through.

Tough & Reliable: Highly resistant to pinholing, porosity, and tearing.

Heat Stable: Suitable for room-temp or heated moulding (RTM). Stable for post-curing up to 140°C.

Cleaner Shop: Low VOC and low odour formula.

Note: Requires MEKP catalyst (sold separately). Not for water immersion (hulls/pools). Use only as a paint substrate.

Safety: Contains styrene. Ensure you use a proper respirator and work in a well-ventilated area.

COLLECTION -Pick up Monday - Friday 7.30 - 5.30 Saturday - 9.00 - 3.00 Sunday and outside these hours - by appointment.

DELIVERY - New Zealand wide We cannot deliver to PO Boxes. Orders are packed after we have received payment. Payments before 4.30pm Monday to Friday will be dispatched that day.

TECH SUPPORT Contact our experienced team for advice and support on our products.