3M™ Marine Adhesive Sealant 4000 UV is a one-component, medium-strength, moisture-curing, gap-filling sealant that cures to form a firm, flexible and waterproof seal on aluminum, wood, gel coat and fiberglass, making it well-suited for marine applications above or below the waterline. This product offers excellent UV resistance for reliable long term performance.

Ideal for Marine Applications Above and Below the Waterline
Our 3M™ Marine Adhesive Sealant 4000 UV is a one-part adhesive sealant formulated to provide an exceptionally strong bond for harsh conditions as well as flexibility to combat vibrations, swelling, shrinking or shock common on boats or other marine applications. It is well-suited for many marine applications both above and below the waterline. Additionally, its superior UV resistance provides reliable long-term performance. Available in cartridge, sausage pack and drum volumes to meet your application needs.
Recommended Applications

Electrical assembly hatch
Stanchion supports
Thru-hull fittings and deck hardware
Porthole frames
Sealing screwholes

Designed to Endure Marine Environments
3M™ Marine Adhesive Sealant 4000UV is part of our broad range of adhesive sealants uniquely formulated for the marine market. Designed for reliable performance, 3M Marine Adhesive Sealant 4000UV provides the strength, flexibility and durability that can meet the demands of many tough applications.
Understanding Silane Modified Polymer (SMP) Sealants
Silane Modified Polymer sealants provide strong, flexible durable elastomeric bonds that seal against the elements. These sealants offer excellent UV resistance and excel in challenging industrial, transportation and construction applications. SMP 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.
Bringing Better Ideas to the Surface through Science and Innovation
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.

• High performance, medium strength bonding allows for disassembly
• Excellent UV resistance
• Color stable sealing
• Above and below the water line applications
• 15-20 minute skin time helps keep jobs moving quickly
• Medium strength - can be removed if rework or repair is necessary
• Paintable immediately after application

• Color: White
• Hardness: 40 Shore A