3M Marine Adhesive Sealant 4200FC, Fast Cure, White, 295 mL Cartridge, 12/Case

• FAST CURING: Formulated for fast cure and rapid results, its tack-free in 1 hour and typically cures in 24 hours
• FLEXIBLE BONDS: Durable elastomeric adhesion maintains joint movement and withstands stress caused by shock, vibration, swelling and shrinking
• HIGH-PERFORMANCE SEALING: Form weather-resistant, malleable bonds between dissimilar surfaces and a wide range of marine substrates like wood, fiberglass, and metal
• MULTI-PURPOSE MARINE SEALANT: This medium-strength marine sealant bonds portholes, deck fittings, rub rails, screw holes, and stanchion supports while still allowing disassembly
• READY FOR WET CONDITIONS: Excels in applications both above and below the water line

3M Marine Adhesive Sealant Fast Cure 4200FC is a multi-purpose adhesive sealant made specifically for the marine market. This medium-strength adhesive forms a weather-resistant seal that still allows for disassembly. It's unique formula reacts with moisture to cure fast, forming a tack-free skin in 1 hour and fully curing in 24. Ideal for use above and below the waterline, it reliably bonds dissimilar materials including wood, fiberglass, gelcoat, plastics, and metals. Polyurethane sealants such as this form permanently flexible, elastomeric bonds that seal against the elements, maintain joint movement, and absorb stress caused by shock, vibration, swelling or shrinking. Such durability, versatility, and flexibility prepare 3M Marine Adhesive Sealant Fast Cure 4200FC for tough applications like sealing portholes, deck/hull fittings, rub rail attachment, screw holes, and stanchion supports.

Excellent for Applications Above and Below the Water Line
3M Marine Adhesive Sealant Fast Cure 4200FC chemically reacts with moisture, delivering flexible bonds with good adhesion to wood, fiberglass, gelcoat, plastics and metals. This multi-purpose adhesive bonds dissimilar materials, forming a watertight, weather-resistant seal on joints and boat hardware above and below the waterline. The flexibility of 3M Marine Adhesive Sealant Fast Cure 4200FC allows for joint movement and stress caused by shock, vibration, swelling or shrinking. Permanently elastic, this medium strength sealant adheres to a wide variety of substrates and allows for disassembly of parts after prolonged use. Available in cartridge and sausage packs to meet your application needs.

Recommended Applications

• Fiberglass deck to hull
• Wood to fiberglass
• Portholes
• Deck fittings
• Rubrail attachment
• Sealing screwholes
• Stanchion supports

Designed to Endure Marine Environments
3M Marine Adhesive Sealant Fast Cure 4200FC is a part of our broad range of adhesive sealants uniquely formulated for the marine market. Designed for reliable performance, 3M Marine Adhesive Sealant Fast Cure 4200FC provides the strength and flexibility that can meet the demands of many tough applications.

Understanding Polyurethane Sealants
Polyurethane sealants provide strong, flexible durable elastomeric bonds that seal against the elements. These sealants excel in challenging industrial, transportation and construction applications. Polyurethane 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.

Trusted 3M Marine Sealant

The 3M Marine Adhesive Sealant 4200FC is designed specifically for marine use, offering fast curing and reliable adhesion. This fast cure formula forms a tack-free skin in just 1 hour and fully cures within 24 hours, ensuring quick and efficient application.

Its white 295 mL cartridge format makes it easy to apply with standard dispensers. Sold in a convenient 12-case pack, this sealant is ready to meet the demands of multiple projects or professional use.

Flexible Durable Bonds

This 3M 4200FC sealant creates flexible, elastomeric bonds that maintain joint movement and absorb stress from shock, vibration, swelling, and shrinking. This flexibility helps keep seals intact in harsh marine environments.

Its medium-strength adhesion allows for disassembly after prolonged use, making it ideal for applications like portholes, deck fittings, and stanchion supports where maintenance may be needed.

High-Performance Weather Resistance

The sealant forms weather-resistant, malleable bonds between dissimilar surfaces such as wood, fiberglass, and metal. This ensures a watertight seal that holds up well above and below the waterline.

Its polyurethane base provides durable protection against the elements, making it suitable for sealing rub rails, screw holes, and other marine hardware exposed to changing conditions.

Multi-Purpose Marine Applications

3M Marine Adhesive Sealant 4200FC is versatile enough for a wide range of marine uses. It bonds materials like fiberglass deck to hull and wood to fiberglass, supporting various boat construction and repair tasks.

The sealant’s medium strength and flexibility allow it to be used on deck fittings, portholes, and stanchion supports while still permitting part disassembly when necessary.

Convenient Cartridge Packaging

Available in a 295 mL cartridge, this sealant fits standard manual or pneumatic applicators for easy dispensing. The 12-case pack size suits professional users needing consistent supply for multiple jobs.

This packaging format supports efficient application and storage, helping users maintain productivity on marine projects requiring fast curing and reliable sealing.