10 Best Boat Fiberglass Repair Kits 2026 in the United States

The TotalBoat-510822 High Performance Epoxy Kit is a versatile and high-quality option for anyone involved in woodworking, boat building, or fiberglass repair. The kit includes a low-viscosity resin and a clear, non-blushing hardener, which means you won't have to do extra washdowns between coats, speeding up your projects. The simple 2:1 mix ratio is made even easier with the included calibrated pumps, ensuring an accurate mix every time.

You can choose from slow, medium, or fast hardeners to control curing times, which adds flexibility depending on your project needs. The medium hardener is generally suitable for most applications, but having options allows for better customization based on working conditions and project size. The epoxy is low odor and has low VOCs, making it safer for indoor use. It produces a BPA-free cured surface, which is particularly useful if the finished product might come into contact with food.

However, the full curing time is relatively long at two days, which might be a drawback if you're in a hurry. The finish quality is reportedly excellent, creating a crystal-clear, durable surface. On the downside, the kit is on the heavier side at nearly 5 pounds, which could be cumbersome for smaller projects. Additionally, while it is compatible with a wide range of materials, it is primarily marketed for clear coating applications, which might limit its use for some more specialized repair tasks. This kit is best suited for those who prioritize finish quality and ease of use and are working on larger projects where the curing time is less of an issue.

The TotalBoat-14409 Marine Gelcoat is a versatile option for boat fiberglass repair, featuring premium marine-grade polyester gelcoat. It is designed to be more durable than standard options, making it suitable for a range of applications such as cosmetic repairs and hull coatings. This gelcoat can be easily tinted to match your boat's existing color, which adds to its flexibility.

The one-step application process using a brush, roller, or spray gun, combined with its non-sagging, high-viscosity formula, ensures easy use and good coverage. At 77°F, the curing time is relatively quick, with a pot life of 8-12 minutes, allowing for efficient repairs. Once cured, the gelcoat can be sanded, buffed, and polished to achieve a high-gloss finish, enhancing the appearance of your boat.

The product is made in the USA and is available in a quart size with wax, ensuring that it dries tack-free. This gelcoat is an ideal choice for those looking to perform high-quality repairs and coatings on their boats, motorcycles, RVs, and more.

The TotalBoat-434282 TotalFair Marine Epoxy Fairing Compound is a versatile repair kit designed for boat owners and those needing to fix fiberglass, wood, aluminum, or steel surfaces. This kit includes a two-part epoxy filler that is lightweight yet high-strength, perfect for smoothing out rough spots and filling dents, holes, and gouges on various watercraft.

One notable strength is its strong bonding capabilities, ensuring a permanent, waterproof repair that can be used both above and below the waterline. The formula is user-friendly with a simple 1:1 mix ratio that changes color to indicate readiness, making it easy to mix and apply. Additionally, the compound cures quickly, being ready to sand in about 4 hours at 80°F, and it sands smoothly to provide a super smooth finish compatible with various primers and paints.

A key point to note is that gelcoat cannot be applied directly over this product; an additional primer is needed. This could be seen as a drawback for those seeking a one-step repair solution. Also, while the compound is easy to apply and spread, it might require some practice to achieve a perfectly feathered edge. Available in different kit sizes, this product offers flexibility depending on the scope of your repair needs. It's a highly effective and user-friendly option for marine repairs, though it does come with some additional steps when finishing with gelcoat.