TRUE COMPOSITES Fiberglass Polyester Resin Kit — 1 Gallon with MEKP Hardener, Marine-Grade Laminating & Sandable Finish

True Composites 1-gallon polyester fiberglass resin kit is a professional-grade laminating system that includes resin and MEKP hardener for reliable fiberglass repairs, marine restorations, and composite projects.

This kit delivers a balanced polyester resin formulation designed for wetting fiberglass, bonding to substrates, and producing a tack-free cure when used with the included MEKP catalyst. Manufactured in the USA, the product is formulated for applications that demand strength and predictable curing times, making it suitable for both workshop fabrication and field repairs. Below are concise answers to the common questions buyers ask when choosing a fiberglass resin kit.

How does this resin perform for boat and marine repairs?

The resin is formulated for marine-grade laminating, providing good adhesion to fiberglass mat and cloth and producing durable, sandable laminates once cured. It resists common stresses encountered in hull repairs and maintenance when applied correctly and finished with appropriate topcoats.

• Marine-grade polyester chemistry for hull and deck repairs
• Good fiberglass wet-out for strong fiber-to-resin bonding
• Sandable surface after full cure for fairing and finishing
• Works with standard marine fillers and topcoats

What comes in the kit and how do I mix it?

The kit contains one gallon of polyester fiberglass resin plus a bottle of methyl ethyl ketone peroxide (MEKP) catalyst for initiating the cure. Mix the ingredients by adding the recommended percentage of MEKP to the resin, stirring thoroughly, and using within the working pot life specified by ambient temperature.

• One gallon polyester resin and MEKP hardener included
• Follow catalyst percentage provided with product for safe cure
• Stir gently to avoid air entrapment for better laminate strength
• Observe pot life and temperature guidelines to control cure speed

Is this suitable for non-marine projects like auto or mold-making?

Yes — the resin's multipurpose characteristics make it appropriate for automotive fiberglass repairs, mold construction, surfboard lamination, and general FRP fabrication. It bonds well with fiberglass reinforcements and can be used wherever polyester resin systems are standard practice.

• Compatible with fiberglass cloth, mat, and chopped strand
• Useful for bodywork patches, custom molds, and reinforcement work
• Accepts fillers and gelcoats used in automotive and marine trades
• Fast cure options allow quicker turnaround when needed

What safety and handling should I follow when using this resin?

Working with polyester resin and MEKP hardener requires ventilation, chemical-resistant gloves, and eye protection to minimize inhalation and skin contact. Store materials away from heat and open flame, and follow the product safety data sheet for first aid and disposal guidance.

• Use in a well-ventilated area or with respirator protection
• Wear nitrile gloves and chemical-resistant clothing
• Keep away from ignition sources; MEKP is a strong oxidizer
• Read and follow the included safety documentation

Who is this for: The True Composites Fiberglass Polyester Resin Kit is aimed at marine technicians, fiberglass fabricators, automotive restorers, DIY boat owners, and hobbyists who need a dependable, ready-to-use resin and hardener pairing. If you require a US-manufactured polyester system for structural repairs, mold making, or FRP fabrication with predictable handling and finishability, this kit provides the core materials professionals and serious DIYers rely on.