--- product_id: 13053675 title: "3M Marine Grade Silicone Sealant, Clear, 304 mL Cartridge | For above the waterline interior/exterior sealing on RVs, boats and more" brand: "3m" price: "¥12393" currency: JPY in_stock: true reviews_count: 9 category: "3 M" url: https://www.desertcart.jp/products/13053675-3m-marine-grade-silicone-sealant-clear-304-ml-cartridge-above store_origin: JP region: Japan --- # Marine-grade durability Water-resistant seal Adheres to multiple surfaces 3M Marine Grade Silicone Sealant, Clear, 304 mL Cartridge | For above the waterline interior/exterior sealing on RVs, boats and more **Brand:** 3m **Price:** ¥12393 **Availability:** ✅ In Stock ## Summary > ⚓ Seal your success with clarity and strength! ## Quick Answers - **What is this?** 3M Marine Grade Silicone Sealant, Clear, 304 mL Cartridge | For above the waterline interior/exterior sealing on RVs, boats and more by 3m - **How much does it cost?** ¥12393 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/13053675-3m-marine-grade-silicone-sealant-clear-304-ml-cartridge-above) ## 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 - • **Crystal Clear Finish:** Maintains a transparent, non-yellowing seal that blends seamlessly with any surface. - • **Long-Lasting Flexibility:** Remains flexible and durable for years, resisting cracking and peeling under extreme conditions. - • **Versatile Surface Bonding:** Bonds securely to metal, fiberglass, glass, plastics, and abraded rubber for all your sealing needs. - • **Unmatched Marine Toughness:** Engineered to withstand harsh saltwater and UV exposure without yellowing or sagging. - • **Professional Grade Reliability:** Trusted by industry pros for above-waterline sealing on boats, RVs, and industrial applications. ## Overview 3M Marine Grade Silicone Sealant (PN08029) is a professional-grade, clear silicone designed for above-waterline sealing in harsh marine environments. It offers superior adhesion to a wide range of materials including metal, fiberglass, glass, and plastics, while maintaining a flexible, non-yellowing, and water-resistant seal that lasts for years. Ideal for industrial and occupational use, this 304 mL cartridge delivers reliable, high-temperature resistant performance trusted by professionals. ## Description 3M Marine Grade Silicone Sealant is designed for the harsh marine environment. Formulated as high-temperature resistant, this sealant provides a durable and long-lasting seal. Review: Great product! Works great! Highly recommend! - Great product! Works great! Highly recommend! Review: Great product! - Great product! ## Features - High quality silicone sealant - For above the waterline interior/exterior sealing - non-yellowing, non-sagging formula - Adheres to bare and painted metal, fiberglass, glass, non-oily woods, many plastics and abraded rubber - Moisture-curing - For industrial/occupational use only. Not for consumer sale or use. - High quality silicone designed for the harsh marine environment - It is clear in color - Non-yellowing seal that remains flexible even after years of exposure ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000H83M4G | | Best Sellers Rank | #3,853 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #12 in Silicone Adhesives | | Brand | 3M | | Brand Name | 3M | | Color | Clear | | Compatible Material | Glass, Metal, Plastic, Wood | | Customer Reviews | 4.7 out of 5 stars 400 Reviews | | Global Trade Identification Number | 00051135080290 | | Included Components | PN08029 | | Item Dimensions | 2 x 2 x 12 inches | | Item Form | Liquid | | Item Type Name | Marine Grade Silicone Sealant (08029) – For Boats and RVs - Clear – 1/10 Gallon Cartridge | | Item Weight | 8 ounces | | Item dimensions L x W x H | 2 x 2 x 12 inches | | Manufacturer | 3M | | Material | Specialized silicone or synthetic rubber compound | | Material Type | Specialized silicone or synthetic rubber compound | | Model | 08029 | | Number of Items | 1 | | Part Number | 051135080290 | | Style | 10.3 fl oz | | Style Name | 10.3 fl oz | | Surface Recommendation | Floors,Walls,Wood | | UPC | 051135080290 | | Unit Count | 1 Count | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** 3M - **Item Weight:** 8 ounces - **Item dimensions L x W x H:** 2 x 2 x 12 inches - **Material:** Specialized silicone or synthetic rubber compound - **Style:** 10.3 fl oz ## Images ![3M Marine Grade Silicone Sealant, Clear, 304 mL Cartridge | For above the waterline interior/exterior sealing on RVs, boats and more - Image 1](https://m.media-amazon.com/images/I/61S8tSufMYL.jpg) ## Available Options This product comes in different **Color, Style** options. ## Questions & Answers **Q: Can. This be used to attach cermamic tiles in a hot tub witch will be under water?** A: I used it to seal a sailboat. As I know it cannot be used under water. This being said, it resists exposure to elements, it is kind of elastic after curing, but is not very adhesive, you can easily peel it off. **Q: Will salt water deteroriate this?** A: Not sure. Used in fresh water only. Great product. **Q: Will this work good with polyurethane front splitter?** A: Depends on what it trying to do. It is not a glue, just a premium silicone sealant, made for wet conditions. **Q: Does this product work to seal cracks in rain boots?** A: Temporary fix. New boots makes more sense. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product! Works great! Highly recommend! *by A***S on July 30, 2025* Great product! Works great! Highly recommend! ### ⭐⭐⭐⭐⭐ Great product! *by R***R on December 8, 2025* Great product! ### ⭐⭐⭐⭐⭐ Fixed car leak *by L***R on February 18, 2024* We used this sealant to seal some cracks in our Honda that were causing water leaks. This product was easy to apply and sealed the cracked that was causing the water leak. I would recommend this sealant as a cheap and easy solution for water leaks in cars. ## Frequently Bought Together - 3M Marine Grade Silicone Sealant, Clear, PN08029, 304 mL Cartridge - 3M Marine Adhesive Sealant Fast Cure 5200 (06520) Permanent Bonding and Sealing for Boats and RVs Above and Below the Waterline Waterproof Repair, White, 10 fl oz Cartridge --- ## 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.jp/products/13053675-3m-marine-grade-silicone-sealant-clear-304-ml-cartridge-above](https://www.desertcart.jp/products/13053675-3m-marine-grade-silicone-sealant-clear-304-ml-cartridge-above) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-14*