--- product_id: 729114639 title: "Marine Gelcoat for Boat Building, Repair and Composite Coatings (White, Unwaxed Gallon)" brand: "totalboat" price: "$441.38" currency: USD in_stock: true category: "Total Boat" url: https://www.desertcart.us/products/729114639-marine-gelcoat-for-boat-building-repair-and-composite-coatings-white store_origin: US region: United States of America --- # Custom dyeable gelcoat Easy brush, roller, spray application Marine-grade polyester resin Marine Gelcoat for Boat Building, Repair and Composite Coatings (White, Unwaxed Gallon) **Brand:** totalboat **Price:** $441.38 **Availability:** ✅ In Stock ## Summary > 🛠️ Elevate your marine projects with gelcoat that means business. ## Quick Answers - **What is this?** Marine Gelcoat for Boat Building, Repair and Composite Coatings (White, Unwaxed Gallon) by totalboat - **How much does it cost?** $441.38 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/729114639-marine-gelcoat-for-boat-building-repair-and-composite-coatings-white) ## Best For - totalboat enthusiasts ## Why This Product - Trusted totalboat brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Professional Finish:** Cures to a sandable, polishable high gloss that resists water, weather, and chemicals for a showroom-worthy look. - • **Versatile Use Cases:** Ideal for boat hulls, composite parts, RVs, motorcycles, and even fiberglass repairs around the home. - • **Unmatched Durability:** Premium ISO NPG polyester resin outperforms standard orthopedic gel for long-lasting marine protection. - • **Effortless Application:** Non-sagging, high-viscosity formula applies smoothly with brush, roller, or spray gun—perfect for pros and DIYers alike. - • **Tailored Aesthetic Control:** Easily dye to match or customize your gelcoat with polyester resin coloring agents for flawless finishes. ## Overview TotalBoat Marine Gelcoat is a premium, unwaxed polyester resin gelcoat designed for boat building, repair, and composite coatings. It offers superior durability, water and weather resistance, and can be custom dyed for perfect color matching. Easy to apply with brush, roller, or spray, it cures to a smooth, high-gloss finish that’s sandable and polishable. Ideal for professionals and serious DIYers seeking a reliable, versatile marine-grade coating. ## Description TotalBoat Gel Coating creates a super smooth, weather-resistant coating on boat hulls, trailers, composite parts and even fiberglass shower repairs, bathtubs, swimming pools and more. This high-quality boat gel coating contains a premium grade ISO NPG polyester resin that is more durable than orthopedic resins, and is preferred in boat construction and as a boat gel repair kit due to increased strength, flexibility and resistance to water, weather and chemicals. Gel coatings are available without wax for use in layups, and with wax for finishing. The 2% MEKP catalyst is the best, but in cooler conditions, it adds up to 3% MEKP. In warmer conditions or for longer working time, add 1% MEKP. The cured gel can be unwaxed, wet sanded and polished for a high gloss protective finish. The wax free gel is used for the initial layer of a layup, but for a cure without pills, mix a paraffin wax additive (sold separately) at a rate of 20 drops per ounce of wax free gel (400g wax free gel = 1/4g wax additive, 950g wax free gel = 1-2 0.2 9 oz of wax additive and 1 liter. wax free gelcoat = 55-4 oz wax additive). TotalBoat Gelcoats can also be dyed to achieve the desired color. For neutral gel coating, add 10% polyester resin or gel dye (12% for yellow, red, purple, light green and orange). For white gel coating, use up to 1% hair coloring agent. Always mix dye into one gel before adding MEKP. If it is dropped, use styrene. If apply to a mold, please use a mold release agent first. Applying over TotalFair TotalBoat epoxy fairing compound, apply TotalBoat 2 Part Epoxy Primer or TotalProtect before applying Gelcoat Boat Paint. Compare to West Marine, FGCI, Fibre Glast, Fiberglass Supply Depot, Polymer Planet, Hi-Bond and Evercoat Gel-Kote Coats. The gel should be part of the boat fiberglass repair kit. All TotalBoat products are designed for boaters by boaters to deliver great value and great results. 100% Made in USA. ## Features - MARINE GRADE PREMIUM POLYESTER COAT: More durable than standard orthopedic gel, this is the smart choice for cosmetic gelcoat repair, hull coatings, boat building, layups and outer linings for composite parts on boats, motorcycles, RVs and more. - Ideal for cosmetic repairs, easy to dye with a polyester resin coloring agent or gel to match your existing gel; dye the gel white for pastel colors; dye the neutral gel for dark, bold colors. Add dyes before adding MEKP catalyst. - Easy application using a brush, roller or spray gun: Non-sagging, high-viscosity formula is easy to apply and has great coverage. At 25°C, pot life is 8-12 minutes. The cured gelcoat is easy to sand, polish and polish to a high gloss finish - CHOOSE THE RIGHT COLD COAT FOR YOUR PROJECT: For layers of polyester resin, use unwaxed gel as the first layer inside a prepared mold; as a final layer, use the gel coat with wax (the wax makes the gel dry without adherence); if necessary, thin only with styrene. - Available in white or neutral, with or without wax. White gel comes in liter sizes; neutral gel coat comes in liter size only. Includes MEKP Catalyst. Coverage: about 12.8 sq.m. / gallon 0.3 cm thick, 25.7 m2 in 1/16 inch, 50.3 sq ft at 1/32 inch ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08KF9FJDK | | Brand Name | TotalBoat | | Compatible Material | Fiberglass, Metal, Plastic | | Customer Reviews | 4.6 4.6 out of 5 stars (68) | | Global Trade Identification Number | 00811932022967 | | Item Form | Gel, Paste | | Manufacturer | TotalBoat | | Material Type | Polyester | | Number of Items | 1 | | Part Number | 488420 | | Style Name | gelcoat | | UPC | 811932022967 | | Unit Count | 128 Fluid Ounces | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** TotalBoat - **Item form:** Gel, Paste - **Material:** Polyester - **Style:** gelcoat - **Water resistance level:** Water Resistant ## Images ![Marine Gelcoat for Boat Building, Repair and Composite Coatings (White, Unwaxed Gallon) - Image 1](https://m.media-amazon.com/images/I/61wGPY5tQiL.jpg) ## Questions & Answers **Q: I have a jetski with pits in hull,can i just paint this on and apply a couple of coats,after prepping it and what would be best,with or without wax?** A: the wax in the gel coat allows it to cure. The advantage of no waz is you can come back hours or even the next day and add additional coats. For a simple repair, I would get with wax. **Q: Will this product run, or can it be molded to hold the desired shape?** A: It is a liquid, so you will not be able to mold it. **Q: Can this gelcoat be tinted with pigments?** A: Yes, the gelcoat can be tinted with pigments. If you are not matching a white color, you may want to select a neutral gelcoat to tint. Adding pigments to white will create pastel colors. **Q: can this be sprayed on? And how many square feet does it cover?** A: It it can be spray but you'll need a large tip like your numbers four or six probably six Leavy better it's got about 12 to 15 minute jail time. I think 1 gallon we cover about 400 ft.² And 10 mil thick. ## Frequently Bought Together - TotalBoat-488420 Marine Gelcoat for Boat Building, Repair and Composite Coatings (White, Gallon No Wax) - TotalBoat Polyester Structural Repair Putty - Marine Grade Long Strand Fiber Fiberglass Reinforced Filler for Boat and Automotive Repair - TotalBoat Polyester Laminating Resin - Marine Grade Fiberglass Resin and MEKP Catalyst for Layups and Repairs (Gallon) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/729114639-marine-gelcoat-for-boat-building-repair-and-composite-coatings-white](https://www.desertcart.us/products/729114639-marine-gelcoat-for-boat-building-repair-and-composite-coatings-white) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-07*