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 93252 8" Dia. x 1/2" Center Hole, 400 Grit, A/O, Arbor-Mount Sanding Star
3M 57267, Temflex Cotton Friction Tape 1755, 2 in x 60 ft, Black, 7100016886
Dynabrade 50010 Collet, 3/8"-24 Female Thread, 1/4" Capacity, 3-Piece Collet
Dynabrade 13310 Mini-Dynisher Finishing Tool Versatility Kit, .4 HP, Rear Exhaust, 3,200 RPM, 5/8" Arbor
Dynabrade 80086 Motorhead Ass'y- 110-120V-60 Hz
Dynabrade 92102 3" W x 10-11/16" L 80 Grit A/Z DynaCut Belt, 10/pack
Dynabrade 79689 8" 180 Grit, Extreme Orange Hook & Loop Disc w/8 Vac Holes, 25 per Box
Standard Abrasives 727395, Buff and Blend Cross Buff HS, A/O Coarse, 2 in x 1/2 in x 2 Ply x 8-32, 7010299537
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Dynabrade 54705 Rotor/Vane Set
3M 10844, Scotch Vinyl Color Coding Electrical Tape 35, 3/4 in x 66 ft, Yellow, 7000006096
Dynabrade 82554 1/4" W x 18" L 60 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 98271 1/2" NPT Male Plug
Dynabrade 31949 Vacuum Hose Ass'y, 3/4" Vac, 5/16" Air Hose
Dynabrade 79145 1/4" W x 24" L 60 Grit DynaCut Premium Ceramic Belt, 50/pack
Dynabrade 79824 3" P2500 Grit Dynasoft Finishing Film Non Vac Hook Face Disc, 50 per box
Dynabrade 64116 Filter
Dynabrade 92115 1/2" W x 12" L 220 Grit A/O DynaCut Belt, 50/pack
Dynabrade 25234 Vane Set (4pk)
3M 08360, Urethane Seam Sealer, White, 310 mL Foil Pack, 7000036353, 6 per case 
