--- product_id: 14774116 title: "3M Marine Grade Silicone" brand: "3m" price: "907 kr" currency: DKK in_stock: false reviews_count: 8 category: "3 M" url: https://www.desertcart.dk/products/14774116-3m-marine-grade-silicone store_origin: DK region: Denmark --- # Marine-grade toughness Fast 24-48h cure Multi-surface adhesion 3M Marine Grade Silicone **Brand:** 3m **Price:** 907 kr **Availability:** ❌ Out of Stock ## Summary > ⚓ Seal your adventure with confidence—marine-grade strength that won’t let you down! ## Quick Answers - **What is this?** 3M Marine Grade Silicone by 3m - **How much does it cost?** 907 kr with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/14774116-3m-marine-grade-silicone) ## 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 - • **No Sag, No Shrink Formula:** Applies cleanly on vertical and overhead surfaces without dripping or shrinking, ensuring a flawless seal every time. - • **Speedy Application & Cure:** No mixing needed—applies straight from the cartridge and cures fully in as little as 24 hours to keep you moving. - • **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 more for all your boat and RV sealing needs. - • **Non-Yellowing, Professional Finish:** Keeps your watercraft looking sharp with a clear white seal that won’t discolor over time. ## Overview 3M Marine Grade Silicone Sealant is a premium, one-component silicone designed specifically for above-waterline sealing on boats and RVs. It offers fast curing in 24-48 hours, superior adhesion to multiple surfaces, and long-lasting flexibility that resists weather, mildew, and yellowing. Ideal for professionals and enthusiasts who demand a durable, clean, and reliable seal to protect and maintain their watercraft’s pristine look. ## 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. Review: Great product! Works great! Highly recommend! - Great product! Works great! Highly recommend! Review: Good marine grade silicone - Needed some marine grade silicone for some fittings on my camper and this worked perfectly. Put the cap on after you're done and the product doesn't cure in the tube and become a solid mess like some other products. The only thing which doesn't work well is the threaded screw-on dispenser cap. The thread will strip with too much lateral pressure, which always happens to me. Also, do yourself a favor and purchase one of those metal tube keys that help you squish material out of a metal tube. It will save your fingers from exessive squishing, lol. ## 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 | #73,517 in Automotive ( See Top 100 in Automotive ) #172 in RV Sealants | | Brand Name | 3M | | Color | White | | Compatible Material | Fiberglass, Glass, Metal, Plastic | | Customer Reviews | 4.6 4.6 out of 5 stars (1,876) | | 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 | | Part Number | 051135080276 | | Style Name | 10.3 fl oz (Cartridge) | | Surface Recommendation | Wall | | UPC | 051135080276 | | Unit Count | 1.0 Count | | 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 - Image 1](https://m.media-amazon.com/images/I/71+7-gTYr1L.jpg) ## Available Options This product comes in different **Color, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product! Works great! Highly recommend! *by A***S on July 30, 2025* Great product! Works great! Highly recommend! ### ⭐⭐⭐⭐⭐ Good marine grade silicone *by J***F on November 14, 2023* Needed some marine grade silicone for some fittings on my camper and this worked perfectly. Put the cap on after you're done and the product doesn't cure in the tube and become a solid mess like some other products. The only thing which doesn't work well is the threaded screw-on dispenser cap. The thread will strip with too much lateral pressure, which always happens to me. Also, do yourself a favor and purchase one of those metal tube keys that help you squish material out of a metal tube. It will save your fingers from exessive squishing, lol. ### ⭐⭐⭐⭐⭐ Great product! *by R***R on December 8, 2025* Great 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.dk/products/14774116-3m-marine-grade-silicone](https://www.desertcart.dk/products/14774116-3m-marine-grade-silicone) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-24*