---
product_id: 41927701
title: "3M 540 (Gray) Marine Grade 20-oz Polyurethane Sealant Adhesive 600mL Sausage Pack (CASE of 12 Each)"
brand: "industrial 3m sealants"
price: "KSh159167"
currency: KES
in_stock: true
category: "Industrial 3 M Sealants"
url: https://www.desertcart.co.ke/products/41927701-3m-540-gray-marine-grade-20-oz-polyurethane-sealant-adhesive
store_origin: KE
region: Kenya
---

# Waterproof & submersible Bonds 10+ materials 90 min skin time 3M 540 (Gray) Marine Grade 20-oz Polyurethane Sealant Adhesive 600mL Sausage Pack (CASE of 12 Each)

**Brand:** industrial 3m sealants
**Price:** KSh159167
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal it fast, seal it strong — the pro’s choice for every surface!

## Quick Answers

- **What is this?** 3M 540 (Gray) Marine Grade 20-oz Polyurethane Sealant Adhesive 600mL Sausage Pack (CASE of 12 Each) by industrial 3m sealants
- **How much does it cost?** KSh159167 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/41927701-3m-540-gray-marine-grade-20-oz-polyurethane-sealant-adhesive)

## Best For

- industrial 3m sealants enthusiasts

## Why This Product

- Trusted industrial 3m sealants brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Flexible & Resilient:** ±25% joint movement capability ensures lasting elasticity without cracking or peeling.
- • **Fast-Track Seal & Paint:** Tack-free in just 60 minutes, paintable after drying for seamless project flow.
- • **Marine-Grade Durability:** Certified waterproof and submersible after 24-48 hours, built to withstand harsh marine environments.
- • **Universal Bonding Power:** Adheres strongly to plastics, metals, masonry, wood, and more—one sealant for all your surfaces.
- • **Certified Safety & Strength:** Meets ASTM C-920 standards with 250 PSI tensile strength and flame/smoke rating for peace of mind.

## Overview

3M 540 Marine Grade Polyurethane Sealant is a high-performance, fast-curing adhesive designed for demanding construction and marine applications. With a 90-minute skin time and full waterproof cure within 48 hours, it bonds elastically to a wide range of materials including metals, plastics, and masonry. Certified to ASTM standards and flame rated, this 600mL sausage pack (case of 12) delivers professional-grade durability and flexibility at a competitive price.

## 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 ( 00068060471994 , 50068060471999 , 50068060471999 , 70068060471993 )

## 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
- 00068060471994 , 50068060471999 , 50068060471999 , 70068060471993

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B071R6D9HM |
| Best Sellers Rank | #557,084 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #207 in Polyurethane Adhesives #502 in Urethane Adhesives |
| Brand | Industrial 3M Sealants |
| Date First Available | January 18, 2017 |
| Full Cure Time | 24 Hours |
| Initial Hardening Time | 6E+1 Minutes |
| Is Discontinued By Manufacturer | No |
| Item Form | Paste |
| Item Weight | 0.01 ounces |
| Item model number | 540 |
| Liquid Volume | 600 Milliliters |
| Manufacturer | Scotch Seal |
| Number of Items | 12 |
| Product Dimensions | 18 x 8 x 9 inches |
| Surface Recommendation | Miscellaneous |
| Tensile Strength | 250 Pounds Per Square Inch |
| UPC | 700287223535 |
| Unit Count | 12.0 Count |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Industrial 3M Sealants
- **Full Cure Time:** 24 Hours
- **Initial Hardening Time:** 6E+1 Minutes
- **Item Weight:** 0.01 Ounces
- **Liquid Volume:** 600 Milliliters

## Images

![3M 540 (Gray) Marine Grade 20-oz Polyurethane Sealant Adhesive 600mL Sausage Pack (CASE of 12 Each) - Image 1](https://m.media-amazon.com/images/I/51uUMOph3RL.jpg)
![3M 540 (Gray) Marine Grade 20-oz Polyurethane Sealant Adhesive 600mL Sausage Pack (CASE of 12 Each) - Image 2](https://m.media-amazon.com/images/I/51MIWE5byGL.jpg)
![3M 540 (Gray) Marine Grade 20-oz Polyurethane Sealant Adhesive 600mL Sausage Pack (CASE of 12 Each) - Image 3](https://m.media-amazon.com/images/I/41fu2FyAHjL.jpg)
![3M 540 (Gray) Marine Grade 20-oz Polyurethane Sealant Adhesive 600mL Sausage Pack (CASE of 12 Each) - Image 4](https://m.media-amazon.com/images/I/71lMJb3RgOL.jpg)

## Questions & Answers

**Q: Is this compatible with Icf blocks? (Polystyrene)**
A: Yes, ICF is one of the things I used it on

## Frequently Bought Together

- 3M 540 (Gray) Marine Grade 20-oz Polyurethane Sealant Adhesive 600mL Sausage Pack (CASE of 12 Each)
- ZIP System Liquid Flash | 29 oz. Cartridge | Weather-Resistant | Flashing Sealant (29oz Cartridge)
- ZIP System Huber Flashing Tape | Self-Adhesive Flashing for Doors-Windows Rough Openings (3.75" x 30')

---

## 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.co.ke/products/41927701-3m-540-gray-marine-grade-20-oz-polyurethane-sealant-adhesive](https://www.desertcart.co.ke/products/41927701-3m-540-gray-marine-grade-20-oz-polyurethane-sealant-adhesive)

---

*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-02*