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.

3M 07053, General Purpose Sanding Sponge CP-040NA, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Fine, 7100110752
Standard Abrasives 840037, Quick Change Surface Conditioning GP Disc, A/O Coarse, TSM, Brown, 3/4 in, QS75KM, 7000121646, 50/case
Dynabrade 78128 3" Dia. Coarse NWN VT DynaBrite Locking-Type Disc, 25/pack
3M 19078, E-A-R E-Z-Fit Probed Test Plugs 393-2005-50, 50 EA/Case, 7000127699
3M 64070, Contractor Grade Pro Strength Duct Tape 3979, Silver, 1.88 in x 60 yd, 7010375912
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
3M 26106, PPS Series 2.0 Adapter, Type S22, 8 mm Male, 0.75 mm Thread, 7100135958
3M Scotchkote Liquid Epoxy Coating Spray System HSS Mix Nozzle,Straight, 7000031879
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
Dynabrade 15420 Dynafile III Abrasive Belt Tool
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Norton 66261014921 - 2" X 1/8" 50 - 80 Grit Coarse Grade Aluminum Oxide Bear-Tex Speed-Lok Rapid Blend Gray TR Non-Woven Unified Wheel, 60 Each
Dynabrade 78423 4-1/2" Dia. x 3/8" Very Fine DynaBrite Surface Conditioning Disc, 25/pack
3M 04258, Scotch Printable Flatback Paper Tape 256, White, 2 in x 60 yd, 6.7 mil,24/Case, 7000123288
3M 26104, PPS Series 2.0 Adapter, Type S20, 1/8 Male, 27 Thread NPSM, 7100135929
3M 26016, PPS Series 2.0 Adapter, Type S9, 16 mm Male, 1.5 mm Thread, 7100135330
3M™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
3M 26105, PPS Series 2.0 Adapter, Type S21, 14 mm Female, 1.0 mm
Thread, 7100135829
3M 13372, Scotch-Brite Star, 3 in A CRS LS, 7000120967
3M 08024, Adhesive Sealant 740 UV, Black, 290 mL Cartridge, 7100115542, 12 per case 
