Fiberglass Warehouse Waxed White Gel Coat - 1 Gallon ISO NPG, Tack-Free Finish

Fiberglass Warehouse Waxed White Gel Coat is a 1-gallon, ISO NPG-grade, waxed polyester gelcoat kit that delivers a durable, tack-free white surface and includes a 2 oz MEKP hardener.

This gelcoat is formulated for finishing and repairing gelcoat surfaces on boats, automotive parts, and industrial laminates. It combines a high-quality modified polyester resin with wax to promote a hard, non-tacky surface while offering the viscosity and adhesion needed for vertical and horizontal applications. The product is intended as the final cosmetic layer or for spot repairs and works with color pigments for custom shades.

What makes this gelcoat suitable for marine and repair use?

The ISO NPG superior-grade resin provides improved durability and weather resistance compared with standard polyester gelcoats, while the wax additive ensures a firm, tack-free finish that reduces post-cure stickiness. Its formulation balances strength and flexibility so that it bonds well to laminates and performs under typical marine conditions.

• ISO NPG modified polyester resin for enhanced durability
• Waxed surface for a hard, non-tacky finish
• Includes 2 oz MEKP hardener for reliable curing
• Good adhesion to polyester laminates and repair patches

How do I apply the 1-gallon waxed white gelcoat effectively?

Application is straightforward for both hobbyists and professionals: you can brush, roll, or spray the gelcoat depending on the project size and desired finish. For multi-layer builds, allow each coat to cure, lightly sand between coats to promote mechanical bonding, and always follow recommended mixing ratios and safety precautions.

• Suitable for brush, roller, or spray gun application
• High-viscosity formula helps reduce sag on vertical surfaces
• Sand between multiple coats to ensure proper adhesion
• Add polyester-compatible pigments before mixing in MEKP for color matching

What does the kit include and how should I prepare it?

The carton contains one gallon of waxed white gelcoat and a 2-ounce bottle of MEKP hardener to initiate cure. Measure and mix according to the manufacturer’s instructions; add pigment if you require a specific tint, and use personal protective equipment when handling resin and peroxide hardener.

• 1 gallon waxed white gelcoat (ISO NPG grade)
• 2 oz MEKP hardener included for immediate use
• Compatible with standard polyester resin pigments for color tuning
• Follow safety guidelines: gloves, eye protection, and ventilation

How should I store and finish cured gelcoat surfaces?

Store unopened product in a cool, dry place away from direct sunlight and heat sources; keep the MEKP in its original container and avoid prolonged storage at high temperatures. Once cured, the waxed gelcoat can be sanded, polished, and waxed again for improved gloss and protection—use progressively finer grits and a quality marine polish for best results.

• Store in cool, well-ventilated areas away from ignition sources
• Sand cured surfaces to refine texture, then polish for shine
• Reapply surface wax or polish for ongoing UV and salt protection
• Dispose of waste and containers per local regulations

Who is this product for? Fiberglass Warehouse Waxed White Gel Coat is aimed at boat owners, professional marine repair shops, composite fabricators, and DIY enthusiasts who need a high-quality, finishing coat for fiberglass projects. It suits anyone who wants a dependable, tack-free white surface that can be color-matched, sanded, and polished for a professional-looking result.