--- 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: "1929.41 DT" currency: TND in_stock: true category: "Industrial 3 M Sealants" url: https://www.desertcart.tn/products/41927701-3m-540-gray-marine-grade-20-oz-polyurethane-sealant-adhesive store_origin: TN region: Tunisia --- # 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:** 1929.41 DT **Availability:** βœ… In Stock ## Summary > πŸ”§ Seal it like a pro, waterproof like a boss! ## 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?** 1929.41 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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 - β€’ **Flexible & Durable:** Β±25% joint movement capability ensures long-lasting elasticity without cracking or peeling. - β€’ **Built for the Elements:** Marine-grade waterproof sealant that stands strong even underwater after full cure. - β€’ **Universal Bonding Power:** Adheres flawlessly to plastics, metals, masonry, wood, and moreβ€”one sealant to rule them all. - β€’ **Fast-Track Your Projects:** Tack-free in just 60 minutes to keep your workflow seamless and efficient. - β€’ **Certified Quality Assurance:** Meets ASTM C-920 and flame/smoke ratings for professional-grade safety and performance. ## Overview 3M 540 Marine Grade Polyurethane Sealant is a fast-curing, one-component adhesive designed for demanding construction and marine applications. With a 90-minute skin time and full waterproof cure within 24-48 hours, it bonds securely to a wide range of materials including metals, plastics, and masonry. Certified to ASTM standards and flame rated, this sealant offers Β±25% joint flexibility and is ideal for submerged and exposed environments, delivering professional-grade durability 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 Β±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 | #262,710 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #105 in Polyurethane Adhesives #261 in Urethane Adhesives | | Brand Name | Industrial 3M Sealants | | Customer Reviews | 5.0 5.0 out of 5 stars (1) | | Full Cure Time | 24 Hours | | Included Components | Item | | Initial Hardening Time | 60 Minutes | | Item Form | Paste | | Item Weight | 0.01 Ounces | | Liquid Volume | 600 Milliliters | | Manufacturer | Scotch Seal | | Model | 540 | | Number of Items | 12 | | Part Number | 540 | | 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:** 60 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/41927701-3m-540-gray-marine-grade-20-oz-polyurethane-sealant-adhesive](https://www.desertcart.tn/products/41927701-3m-540-gray-marine-grade-20-oz-polyurethane-sealant-adhesive) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-14*