A Strong Adhesion Seam Sealer
3M™ MSP Seam Sealer adheres exceptionally well to bare metal, primed and painted surfaces. Our high quality, heavy-bodied and moisture-curing seam sealer may be used on both interior and exterior body joints. It dries to be tack free in 30 minutes and is immediately paintable up to 72 hours without abrading. Our seam sealer offers the convenience of being a one-part formula that does not shrink and stays permanently flexible. This seam sealer is not recommended for acrylic lacquer surfaces.
Better Results for Professional Auto Body Shops
When your reputation as an automotive body shop that does quality work is on the line, you want to use a seam sealer that is proven for reliability. Excellent adhesion to primed metal and aluminum means there is minimal opportunity for bond failure and fewer customer returns for seam sealer failure. With its fast curing properties, our seam sealer boosts auto shop productivity.
A User-Friendly Product for Automotive Technicians
Our seam sealer has been formulated so that it is more pleasant and easier to use. Its low solvent percentage means there is less airborne solvent during curing process and less odor. This seam sealer has an excellent shelf life and generally stays usable longer than standard seam sealers, resulting in less product waste.
Recommended Applicator Gun
We recommend applying 3M™ MSP Seam Sealer with our 3M™ Flexible Package Applicator Gun, 08398 (sold separately). This fully enclosed, all metal, rod driven, friction feed applicator gun smoothly and effortlessly dispenses single component products packaged in 310 mL and smaller flex packs.

Dynabrade 50010 Collet, 3/8"-24 Female Thread, 1/4" Capacity, 3-Piece Collet
Dynabrade 78710 5/16" x 5/8"-B53 Dynacut A/O Mounted Point, 5/pack
Dynabrade 95216 Pin
Dynabrade 94112 7" Dynacut Diamond Segmented Rim Cut-Off Blade
3M 79911, Scotch Long Lasting Storage Pkg Tape with dispenser 3650-RD-12GC, 1.88 in x 54.6 yd (48 mm x 50 m), Refillable Dispenser, 7100234261
Dynabrade 90226 1/4" W x 18" L 320 Grit A/O DynaCut Belt, 50/pack
Dynabrade 78724 3/8" x 3/4"-B52 Dynacut A/O Mounted Point, Vitrified, 5/pack
Dynabrade 92102 3" W x 10-11/16" L 80 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 11078 Contact Wheel Ass'y, 5/8" Dia. x 3/8" W x 3/8" I.D., Crown Face, 70 Duro Rubber
Dynabrade 15006 Mini-Dynafile II Abrasive Belt Tool Versatility Kit
Dynabrade 13310 Mini-Dynisher Finishing Tool Versatility Kit, .4 HP, Rear Exhaust, 3,200 RPM, 5/8" Arbor
Standard Abrasives 709600, A/O Straight Cartridge Roll, 3/8 in x 1-1/2 in x 1/8 in 50, 7100103126
3M 10844, Scotch Vinyl Color Coding Electrical Tape 35, 3/4 in x 66 ft, Yellow, 7000006096
Dynabrade 59339 Vacuum Cuff, 1", w/Groove
3M 05415, Heavy Duty Protective Tape 346, Tan, 4 in x 60 yd, 16.7 mil, 3 Roll/Case, 7010311705
Standard Abrasives 705686, A/O Straight Cartridge Roll, 1/4 in x 1-1/2 in x 1/8 in 80, 7100080009
Dynabrade 56323 3-7/8" x 5-5/8" Vacuum Dynabug II Disc Pad, Hook-Face, Short Nap
3M 93947, Scotch Stucco Tape 3260-A, 1.88 in x 60 yd (48 mm x 54.8 m), Stucco Tape, 7010384961
Dynabrade 93534 3" Mandrel for Sanding Stars, 3-48 Male Thread
3M 36850, Dirt Trap Protection Material, White, 6 in x 300 ft, 7100132342 
