---
product_id: 49943521
title: "540 Polyurethane Sealant Adhesive White Marine Grade 10.5 oz Cartridge (Pack of 6)"
brand: "3m"
price: "$67.01"
currency: USD
in_stock: false
url: https://www.desertcart.ec/products/49943521-540-polyurethane-sealant-adhesive-white-marine-grade-10-5-oz
store_origin: EC
region: Ecuador
---

# 90 Min Skin Time Waterproof 300 psi Tensile Strength 540 Polyurethane Sealant Adhesive White Marine Grade 10.5 oz Cartridge (Pack of 6)

**Brand:** 3m
**Price:** $67.01
**Availability:** ❌ Out of Stock

## Summary

> 🌊 Seal the Deal with Confidence!

## Quick Answers

- **What is this?** 540 Polyurethane Sealant Adhesive White Marine Grade 10.5 oz Cartridge (Pack of 6) by 3m
- **How much does it cost?** $67.01 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/49943521-540-polyurethane-sealant-adhesive-white-marine-grade-10-5-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

- • **Safety First:** Smoke and flame rated, meeting stringent ASTM standards for peace of mind.
- • **Quick and Efficient:** Achieve a tack-free finish in just 90 minutes, perfect for fast-paced projects.
- • **Paintable Perfection:** Easily paintable after curing, allowing for seamless integration into any design.
- • **Unmatched Versatility:** Bonds to a wide range of materials including plastics, metals, and wood.
- • **Marine-Grade Excellence:** Designed for submerged applications, ensuring durability in aquatic environments.

## Overview

The 540 Polyurethane Sealant Adhesive is a high-performance, marine-grade adhesive designed for a variety of applications. With a 90-minute skin time and waterproof capabilities, it bonds effectively to multiple surfaces, including plastics, metals, and wood. This product meets rigorous ASTM standards and offers a tensile strength of 300 psi, making it ideal for both above and below water use.

## Description

M Polyurethane Sealant 540 is a high performance, fast curing, one component, moisture curing product which forms a permanent elastic bond to a wide variety of materials including plastics, FRP, SMC, aluminum, masonry, steel, coated metal, and wood. This product is ideally suited for a number of construction applications including; expansion joints, control joints, doors and windows, aluminum curtain walls and storefront glass, as well as precast and tilt-up construction. 3M Polyurethane Sealant 540 is Tack-free in 60 minutes per ASTM C679, features a Joint movement capability of ±25%, and once fully cured is suitable for Submerged waterproof applications. Comparable to 3M 5200 Marine sealant but half the price! Meets ASTM C-920

## Features

- 90 Minute Skin Time, Paintable after Tack-Free
- Waterproof, Marine Grade, and Suitable for Submerged waterproof applications after 24-48 hours
- Bonds to; Plastics, FRP, SMC, Concrete, Brick, Masonry, aluminum, steel, coated metal, and wood
- Smoke, and Flame Rated, Meets ASTM C-920, ASTM C679
- Delivers great performance with tensile strength of 300 psi.

## Images

![540 Polyurethane Sealant Adhesive White Marine Grade 10.5 oz Cartridge (Pack of 6) - Image 1](https://m.media-amazon.com/images/I/41ZI0CaXK2L.jpg)
![540 Polyurethane Sealant Adhesive White Marine Grade 10.5 oz Cartridge (Pack of 6) - Image 2](https://m.media-amazon.com/images/I/51RDmC6kSBL.jpg)
![540 Polyurethane Sealant Adhesive White Marine Grade 10.5 oz Cartridge (Pack of 6) - Image 3](https://m.media-amazon.com/images/I/41S8Y5JaKYL.jpg)
![540 Polyurethane Sealant Adhesive White Marine Grade 10.5 oz Cartridge (Pack of 6) - Image 4](https://m.media-amazon.com/images/I/51zwyM6NPqL.jpg)
![540 Polyurethane Sealant Adhesive White Marine Grade 10.5 oz Cartridge (Pack of 6) - Image 5](https://m.media-amazon.com/images/I/51iEuwf5ykL.jpg)

## Questions & Answers

**Q: What caulk do I need for this adhesive tube?**
A: The tube fits in a standards caulk gun.  I used the caulk for a shower installation and am extremely happy with the result.  Other caulks do not come close to the quality of this product.  Note that it does have a shelf life, so only order as much as you will use.

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**Shop now:** [https://www.desertcart.ec/products/49943521-540-polyurethane-sealant-adhesive-white-marine-grade-10-5-oz](https://www.desertcart.ec/products/49943521-540-polyurethane-sealant-adhesive-white-marine-grade-10-5-oz)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-03-01*