---
product_id: 4613298
title: "3M Marine Adhesive Sealant 5200 - Permanent Bonding and Sealing for Boats and Marine Applications - Black - 3 Ounces"
brand: "3m"
price: "€ 28.30"
currency: EUR
in_stock: true
reviews_count: 13
category: "3 M"
url: https://www.desertcart.ie/products/4613298-3m-marine-adhesive-sealant-5200-permanent-bonding-and-sealing-boats
store_origin: IE
region: Ireland
---

# 48-hour handling strength Permanent marine-grade bond Saltwater & weather resistant 3M Marine Adhesive Sealant 5200 - Permanent Bonding and Sealing for Boats and Marine Applications - Black - 3 Ounces

**Brand:** 3m
**Price:** € 28.30
**Availability:** ✅ In Stock

## Summary

> ⚓ Seal your legacy with 3M’s toughest marine adhesive!

## Quick Answers

- **What is this?** 3M Marine Adhesive Sealant 5200 - Permanent Bonding and Sealing for Boats and Marine Applications - Black - 3 Ounces by 3m
- **How much does it cost?** € 28.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/4613298-3m-marine-adhesive-sealant-5200-permanent-bonding-and-sealing-boats)

## 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

- • **Extended Work Window:** Generous working time lets you perfect every application without rush
- • **Weatherproof Warrior:** Resists saltwater corrosion and harsh marine elements above & below waterline
- • **Unbreakable Marine Bond:** Permanently seals wood, fiberglass & metal with unmatched strength
- • **Flexible Stress Absorber:** Elastomeric formula absorbs vibration, swelling, shrinking & shock effortlessly
- • **Trusted Industry Standard:** 3M’s #1 marine sealant for professionals demanding durability and reliability

## Overview

3M Marine Adhesive Sealant 5200 is a black, polyurethane-based sealant designed for permanent, watertight bonding in demanding marine environments. It offers exceptional resistance to saltwater and weathering, flexible elastomeric bonds that absorb structural stress, and a long working time with handling strength achieved in 48 hours. Ideal for wood, fiberglass, and metal substrates, it’s the go-to sealant for professionals seeking durable, reliable marine-grade adhesion.

## Description

Tough and Flexible to Form Strong Bonds. Forming watertight seals, 3M Marine Adhesive Sealant 5200 offers permanent adhesion to wood, gelcoat and fiberglass. In addition, our marine adhesive sealant is flexible and allows for structural movement and dissipation of stress that may be caused by vibration, swelling, shrinking or shock. Available in both cartridge and sausage packs to meet your application requirements. Recommended Applications: Fiberglass deck to hull; Through hull fittings; Wood to fiberglass; Portholes and deck fittings; Motors on fiberglass transoms; Under moldings; Hull seams above and below water line; Deck housing. Combats Vibrations, Swelling, Shrinking and Shock. 3M Marine Adhesive Sealant 5200 is designed to meet the high demands of the marine environment, making it ideal for creating tough bonds resistant to saltwater and weathering. We formulated our sealant to provide an exceptionally strong solution for marine conditions as well as flexibility that combats vibrations, swelling, shrinking or shock. Once again, despite the barriers of a rough marine environment, 3M looked to science to provide a reliable, durable solution. Designed to Endure Marine Environments - 3M Marine Adhesive Sealant 5200 is a part of our broad range of adhesive sealants uniquely formulated for the marine market. Designed for reliable performance, 3M Marine Adhesive Sealant 5200 is the most trusted sealant in the industry for permanent, high strength bonding. Polyurethane sealants provide strong, flexible durable elastomeric bonds that seal against the elements. These sealants excel in challenging industrial, transportation and construction applications. Polyurethane sealants are available in a wide variety of Shore A hardness, open time and colors to meet many application needs. Choose a 3M Manual or Pneumatic Applicator for dispensing 3M adhesives sealant cartridges and 400ml/600ml sausage packs. In our 3M Industrial Adhesives and Tapes Division, we apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, our technologies help customers like you deliver competitive products to the market faster and more efficiently.

Review: Good product - Good adhesive. 3m. Can't go wrong.
Review: Great for permanent installs - Nothing better than 3M Marine Sealant 5200 , works great and hold up to extreme conditions

## Features

- POWERFUL MARINE SEALANT: A permanent solution for bonding marine substrates like wood, fiberglass, and metal
- VERSATILE APPLICATIONS: Tough yet flexible polyurethane polymer is ideal for deck housings, hull fittings, porthole mounting, fiberglass transoms, and underside molding
- WARD OFF WATER: Resists saltwater and weathering both above and below the water line
- FLEXIBLE BONDS: Its elastomeric bond absorbs the stress of vibration, swelling, shrinking, and shock
- LONG WORKING TIME: Allows plenty of working time, achieving handling strength in 48 hours

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000Y89JC8 |
| Best Sellers Rank | #1,454 in Automotive ( See Top 100 in Automotive ) #24 in Thread Lock Sealers |
| Brand | 3M |
| Color | Black |
| Date First Available | June 16, 2006 |
| Department | unisex-adult |
| Global Trade Identification Number | 00051135052051 |
| Is Discontinued By Manufacturer | No |
| Item Form | Ounces |
| Item Weight | 4.8 ounces |
| Item dimensions L x W x H | 1.4 x 4.9 x 8.8 inches |
| Item model number | 5200 |
| Manufacturer | 3M |
| Material | Plastic |
| Number of Items | 1 |
| Product Dimensions | 1.4 x 4.9 x 8.8 inches |
| Style | 5200 |
| Surface Recommendation | Floor, Wall |
| UPC | 051135052051 |
| Unit Count | 3.0 Fluid Ounces |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** 3M
- **Item Weight:** 0.3 Pounds
- **Item dimensions L x W x H:** 1.4 x 4.9 x 8.8 inches
- **Material:** Plastic
- **Style:** 5200

## Images

![3M Marine Adhesive Sealant 5200 - Permanent Bonding and Sealing for Boats and Marine Applications - Black - 3 Ounces - Image 1](https://m.media-amazon.com/images/I/6154aDqHkIL.jpg)

## Available Options

This product comes in different **Pattern, Color, Size** options.

## Questions & Answers

**Q: Does the 10oz. Silicone require purchasing a special caulk gun? I was previously shipped tubes made of metal with pull tap opening like on a soup can**
A: I was concerned as well but it has an internal plastic follower cup that a traditional caulking gun presses against: Similar to the traditional caulk tube. The additional metal seal helps to prolong the storage of the adhesive sealant.

**Q: Has anyone tried mixing a color pigment into the glue before application?  Will this effect the cure?**
A: I have not and can only advise you give 3M support line a call and ask them and if you can I am sure they will tell you which coloring to use.  I would not just mix in any color you don't know how the glue will react to it.  Give 3M a call I am sure they will be glad to help.

**Q: My kitty put a couple of pin hole sized punctures in my scuba bcd, causing a small, slow leak.  will this patch it?**
A: Yes it will. Allow five days to cure. Don’t use the fast cure.

**Q: Is it paintable?**
A: Yes it is paintable

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by J***A on February 8, 2026*

Good adhesive. 3m. Can't go wrong.

### ⭐⭐⭐⭐⭐ Great for permanent installs
*by P***. on January 30, 2026*

Nothing better than 3M Marine Sealant 5200 , works great and hold up to extreme conditions

### ⭐⭐⭐⭐⭐ Great sealer.
*by T***R on January 2, 2026*

Hold well. Form any under water application. It’s a little messy to work with.

## Frequently Bought Together

- 3M Marine Adhesive Sealant 5200 - Permanent Bonding and Sealing for Boats and Marine Applications - Black - 3 Ounces
- 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
- 3M TALC Marine Adhesive Sealant Fast Cure 4200 (05260) – Semi-Permanent Flexible Adhesive Sealant for Boats and Marine Applications – White – 3 Ounces

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-10*