--- product_id: 14774116 title: "3M Marine Grade Silicone Sealant, White, 10.3 fl oz, Cartridge | For Boats and RVs, Above the Waterline Interior/Exterior Sealing, 08027" brand: "3m" price: "354.64 DT" currency: TND in_stock: true reviews_count: 8 url: https://www.desertcart.tn/products/14774116-3m-marine-grade-silicone-sealant-white-10-3-fl-oz store_origin: TN region: Tunisia --- # Marine-grade toughness Fast 24-48h cure time Multi-surface adhesion 3M Marine Grade Silicone Sealant, White, 10.3 fl oz, Cartridge | For Boats and RVs, Above the Waterline Interior/Exterior Sealing, 08027 **Brand:** 3m **Price:** 354.64 DT **Availability:** ✅ In Stock ## Summary > ⚓ Seal like a pro, sail like a boss! ## Quick Answers - **What is this?** 3M Marine Grade Silicone Sealant, White, 10.3 fl oz, Cartridge | For Boats and RVs, Above the Waterline Interior/Exterior Sealing, 08027 by 3m - **How much does it cost?** 354.64 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/14774116-3m-marine-grade-silicone-sealant-white-10-3-fl-oz) ## Best For - 3m enthusiasts ## Why This Product - Trusted 3m brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Apply & Seal in One Go:** No mixing needed—just squeeze and seal with a non-sag formula that works on vertical surfaces effortlessly. - • **Quick Return to Adventure:** Tack-free in 20 minutes and fully cured in 24-48 hours so you’re back on the water faster than ever. - • **Crystal Clear White Finish:** Keeps your boat or RV looking sharp with a non-yellowing, mildew-resistant sealant. - • **Unmatched Marine Durability:** Engineered to stay flexible and strong above the waterline, resisting weather and mildew for years. - • **Versatile Surface Compatibility:** Bonds seamlessly to fiberglass, metal, glass, plastic, and non-oily wood for all your sealing needs. ## Overview 3M Marine Grade Silicone Sealant is a premium, one-component silicone designed specifically for above-waterline sealing on boats and RVs. It offers superior flexibility, weather and mildew resistance, and a non-yellowing white finish. Easy to apply with no mixing required, it bonds to multiple surfaces and cures quickly, ensuring durable, professional-grade protection that keeps your watercraft looking pristine and ready for action. ## Description 3M Marine Grade Silicone Sealant is formulated specifically for above-the-waterline sealing on RVs, boats and personal watercraft. Ideal for hatches, dashboard components, deck hardware, portlights and many other uses inside or out, it features a non-shrinking formula that forms a strong elastomeric bond and stays firm, tough yet flexible even in tough environments. Apply this silicone sealant to paint, fiberglass, bare metal, glass and non-oily wood as well as many plastics and abraded rubber. It resists all types of weather including high temperatures, and fights the growth of mildew which can cause degrading and discoloration. It also won’t turn yellow over time, preserving the sharp, professional look of your boat or other watercraft. It won’t sag, making it easy to apply even on vertical surfaces. It requires no mixing and applies right from the container. This boat sealant becomes tack-free in as little as 20 minutes, and fully cures in 24 to 48 hours so you can get right back out on the water. Providing a high-quality seal, 3M Marine Grade Silicone Sealant is a one-component cure, silicone sealant engineered to withstand the harsh marine environment. This weather-resistant sealant is formulated to resist mildew and form a non-yellowing seal for above waterline applications. In addition, this marine sealant is high-temperature resistant and remains flexible even after years of exposure. The non-shrinking and non-sagging properties of this product offer simple and efficient application. This marine-grade sealant adheres to bare and painted metal, fiberglass, glass, non-oily woods, plastics and abraded rubbers. ## Features - DEVELOPED SPECIFICALLY AS A MARINE SEALANT – Stays tough and flexible for a wide range of uses above the waterline - VERY VERSATILE – Works on metal, glass, paint, fiberglass and more - EASY TO USE – Applies right from the container with no mixing required - HELPS KEEP WATERCRAFT LOOKING SHARP – Won’t turn yellow over time - EASY TO USE – Requires no mixing and cures in as little as 24 hours so you can get back out on the water faster - For industrial/occupational use only. Not for consumer sale or use ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B000N9RVAA | | Best Sellers Rank | #35,540 in Automotive (See Top 100 in Automotive) #128 in RV Sealants | | Brand Name | 3M | | Color | White | | Compatible Material | Fiberglass, Glass, Metal, Plastic | | Customer Reviews | 4.6 4.6 out of 5 stars (210) 4.6 out of 5 stars | | Global Trade Identification Number | 00051135080276 | | Included Components | 3M 08027 Marine Grade Silicon Sealant - 1/10 Gallon Cartridge, White | | Item Dimensions | 8.5 x 6.5 x 12.25 inches | | Item Form | Liquid | | Item Type Name | 3M Marine Grade Silicone Sealant, 08027, For Boats and RVs, Above the Waterline Interior/Exterior Sealing, White, 10.3 fl oz Cartridge | | Item Weight | 12.6 ounces | | Manufacturer | 3M | | Material Type | Silicone | | Model | MG Sil | | Number Of Items | 1 | | Number Of Packs | 1 | | Part Number | 051135080276 | | Style Name | 10.3 fl oz (Cartridge) | | Surface Recommendation | Wall | | Unit Count | 1 Count | | Upc | 051135080276 | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** 3M - **Item Weight:** 12.6 ounces - **Item dimensions L x W x H:** 8.5 x 6.5 x 12.25 inches - **Material:** Silicone - **Style:** 10.3 fl oz (Cartridge) ## Images ![3M Marine Grade Silicone Sealant, White, 10.3 fl oz, Cartridge | For Boats and RVs, Above the Waterline Interior/Exterior Sealing, 08027 - Image 1](https://m.media-amazon.com/images/I/71+7-gTYr1L.jpg) ![3M Marine Grade Silicone Sealant, White, 10.3 fl oz, Cartridge | For Boats and RVs, Above the Waterline Interior/Exterior Sealing, 08027 - Image 2](https://m.media-amazon.com/images/I/61Jiw7E3JuL.jpg) ![3M Marine Grade Silicone Sealant, White, 10.3 fl oz, Cartridge | For Boats and RVs, Above the Waterline Interior/Exterior Sealing, 08027 - Image 3](https://m.media-amazon.com/images/I/61DH1oUXWQL.jpg) ![3M Marine Grade Silicone Sealant, White, 10.3 fl oz, Cartridge | For Boats and RVs, Above the Waterline Interior/Exterior Sealing, 08027 - Image 4](https://m.media-amazon.com/images/I/71i3Yq7mOZL.jpg) ![3M Marine Grade Silicone Sealant, White, 10.3 fl oz, Cartridge | For Boats and RVs, Above the Waterline Interior/Exterior Sealing, 08027 - Image 5](https://m.media-amazon.com/images/I/81nnGefDaSL.jpg) ## Available Options This product comes in different **Color, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great *by on Reviewed in the United States June 16, 2023* My boat ### ⭐⭐⭐⭐⭐ Simply the best... *by on Reviewed in the United States August 5, 2019* I tried a couple other brands and this one is by far the easiest, least messy, and perfect application for me. Pool deck grout line. ### ⭐⭐⭐⭐⭐ As expected, 3M is the best *by on Reviewed in the United States July 5, 2025* You can never ho wrong with a 3M product ## Frequently Bought Together - 3M Marine Grade Silicone Sealant, 08027, For Boats and RVs, Above the Waterline Interior/Exterior Sealing, White, 10.3 fl oz Cartridge - 3M Marine Adhesive Sealant Fast Cure 5200 (06535) Permanent Bonding and Sealing for Boats and RVs Above and Below the Waterline Waterproof Repair, White, 1 fl oz Tube --- ## 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.tn/products/14774116-3m-marine-grade-silicone-sealant-white-10-3-fl-oz](https://www.desertcart.tn/products/14774116-3m-marine-grade-silicone-sealant-white-10-3-fl-oz) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-15*