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.

Insize 2103-10E, DIGITAL INDICATOR (advanced model), .5"/12.7mm, lug back, 6928640329418
Dynabrade 90368 3/4" W x 34" L 80 Grit A/O DynaCut Belt, 50/pack
Dynabrade 92102 3" W x 10-11/16" L 80 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 96425 Screws For Vacuum Shroud (57737)
Dynabrade 78724 3/8" x 3/4"-B52 Dynacut A/O Mounted Point, Vitrified, 5/pack
Dynabrade 92149 1/2" W x 18" L 60 Grit Ceramic DynaCut Scalloped Edge Belt, 50/pack
Dynabrade 82489 6" Dia. x 100 Grit A/O Vacuum PSA Filmbac DynaCut Disc, 100/Pack
Dynabrade 92193 2" W x 30" L 120 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 95886 Washers For Vacuum Shroud (57737)
Dynabrade 50010 Collet, 3/8"-24 Female Thread, 1/4" Capacity, 3-Piece Collet
Dynabrade 79327 4-1/2" Dia. x 7/8" Center Hole, 60 Grit, Ceramic DynaCut Fiber Disc, 25/box
Dynabrade 78739 5/16" x 5/8"- B53 DynaFire A/O Vitrified Mounted Point, 5/pack 
