---
product_id: 144822067
title: "7000000623 Marine Adhesive Sealant - 10 oz., White"
brand: "3m"
price: "€ 70.84"
currency: EUR
in_stock: true
reviews_count: 8
category: "3 M"
url: https://www.desertcart.fr/products/144822067-7000000623-marine-adhesive-sealant-10-oz-white
store_origin: FR
region: France
---

# Extended working time for precision application Permanent waterproof bond above & below waterline 700 PSI tensile strength for tough, flexible hold 7000000623 Marine Adhesive Sealant - 10 oz., White

**Brand:** 3m
**Price:** € 70.84
**Availability:** ✅ In Stock

## Summary

> ⚓ Seal your legacy with the ultimate marine adhesive!

## Quick Answers

- **What is this?** 7000000623 Marine Adhesive Sealant - 10 oz., White by 3m
- **How much does it cost?** € 70.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/144822067-7000000623-marine-adhesive-sealant-10-oz-white)

## 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

- • **Waterproof Confidence:** Seals wood, gelcoat, and fiberglass permanently, even underwater
- • **Fast Handling Strength:** Achieves reliable handling strength in just 48 hours
- • **Flexible Yet Rock-Solid Seal:** Polyurethane polymer adapts to movement without cracking
- • **Precision Application Window:** Extended working time lets you perfect every joint
- • **Unmatched Marine-Grade Durability:** Industry standard for over 50 years of trusted performance

## Overview

3M Marine Adhesive Sealant 5200 is a high-strength, moisture-curing polyurethane designed for permanent, waterproof bonding of wood, gelcoat, and fiberglass. Trusted for over 50 years, it offers flexible, gap-filling adhesion above and below the waterline, with a tensile strength of 700 PSI and full handling strength in 48 hours.

## Description

3M Marine Adhesive Sealant 5200 is a one-component, high-strength, moisture-curing, gap-filling polyurethane for permanent bonding of wood, gelcoat and fiberglass. It cures to form a firm, rubbery, waterproof seal on joints and boat hardware, above and below the waterline. 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.

Review: Great sealant - used to reseal around my pool skimmer and also some leaking waders - Good permanent sealant - takes a day or so to harden but great stuff
Review: Good adhesion and feels strong. - This Marine Adhesive Sealant has good adhesion and feels strong. So far did not fell apart under water.

## Features

- Permanent bonding – above and below the waterline
- Industry standard for over 50 years
- Offers extended working time
- Achieves handling strength in 48 hours
- Tough and flexible polyurethane polymer forms strong bonds

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00AZA3DY0 |
| Best Sellers Rank | #17,276 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #54 in Adhesive Caulk |
| Brand | 3M |
| Color | No Color |
| Date First Available | July 7, 2004 |
| Department | unisex-adult |
| Full Cure Time | 48 Hours |
| Initial Hardening Time | 48 Hours |
| Is Discontinued By Manufacturer | No |
| Item Form | Oz |
| Item Weight | 14.4 ounces |
| Item model number | 7000000623 |
| Liquid Volume | 10 Fluid Ounces |
| Manufacturer | 3M |
| Material | Plastic |
| National Stock Number | 8030-01-187-8439 |
| Number of Items | 1 |
| Product Dimensions | 12.2 x 1.8 x 1.7 inches |
| Surface Recommendation | Miscellaneous |
| Tensile Strength | 700 Pounds Per Square Inch |
| UPC | 638060094990 |
| Unit Count | 10.0 Fluid Ounces |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** 3M
- **Color:** No Color
- **Full Cure Time:** 48 Hours
- **Item Weight:** 0.9 Pounds
- **Liquid Volume:** 10 Fluid Ounces

## Images

![7000000623 Marine Adhesive Sealant - 10 oz., White - Image 1](https://m.media-amazon.com/images/I/51hZGj4DiXL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Can i use this to seal my rv?**
A: depends what you are sealing on your Rv, but I can see a lot of areas were you could use this product on your RV as RV's are made of fiberglass and a lot alike a boat.

**Q: Can this product be used on marine vinyl flooring?**
A: yes. works on almost anything.  best on market.

**Q: Stitch and glue? Coverage?**
A: Coverage with anything all depends on the thickness you use. That’s about all
I can tell you, I use it on the hull of a boat for making a water tight seal. Of transducers Ect. It’s great for that. I have used this product for well over 30 yrs for just those purposes. I guess it could work on some plumbing applications you would have to try it . That’s about all
I can say

**Q: Will this sealant bond lpe wood (which I understand has natural oils in it)?**
A: Yes it will

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great sealant - used to reseal around my pool skimmer and also some leaking waders
*by A***R on December 24, 2025*

Good permanent sealant - takes a day or so to harden but great stuff

### ⭐⭐⭐⭐⭐ Good adhesion and feels strong.
*by I***V on February 20, 2026*

This Marine Adhesive Sealant has good adhesion and feels strong. So far did not fell apart under water.

### ⭐ Missing Applicator
*by D***R on April 6, 2025*

Great product if I had an applicator. As other reviewers have noted, received sealant without applicator nozzle so I am unable to use. I figured maybe seller would have corrected this problem but I figured wrong. Tube is in good shape though. MFG date 01/29/24. "Free" returns means a 70 mi round trip to nearest UPS store.

## Frequently Bought Together

- 3M 7000000623 Marine Adhesive Sealant - 10 oz., White
- 3M Marine Adhesive Sealant Fast Cure 4200 (06560) – Semi-Permanent Flexible Adhesive Sealant for Boats and RVs, White, Flexible Bonds, Underwater-Safe, 295 mL Cartridge

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-03-07*