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 21432 ND220, Vane 5/Pack
Dynabrade 94467 DynaJet In-Line Blow Gun
Insize 4635-1B19, WHITWORTH PIPE THREAD RING GAGE(G SERIES), G 1/4 - 19_ GO, 6928640375347
Dynabrade 82489 6" Dia. x 100 Grit A/O Vacuum PSA Filmbac DynaCut Disc, 100/Pack
Dynabrade 90874 2" Dia. Very Fine NWN DynaBrite Locking-Type Disc, 25/pack
Dynabrade 01794 Rubber Drive Wheel
Dynabrade 90405 1/8" W x 24" L 60 Grit A/O DynaCut Belt, 50/pack
Dynabrade 92116 1/2" W x 12" L 320 Grit A/O DynaCut Belt, 50/pack
Air Turbine Tools 2545SVF - 1/4" Angle Hand Tool Series (Long Version, Front Exhaust), 30,000RPM, 35532
Dynabrade 78055 1" W x 24" L Medium NWN DynaBrite Belt, 10/pack
Standard Abrasives 713402, A/O Straight Cartridge Roll, 3/8 in x 2 in x 1/8 in 80, 7100103094
Dynabrade 94897 Re-usable Compression Fitting Ass'y (for 8mm Hose)
Air Turbine Tools 310RDM - 1/4" Router Hand Tool Series, 40,000RPM, 33442
Dynabrade 90549 1/2" W x 44" L 120 Grit A/O DynaCut Belt, 50/pack
Dynabrade 39200 2" Type C, Roto Peen Flaps
Dynabrade 90272 3-1/2" W x 15-1/2" L 60 Grit A/Z DynaCut Belt, 10/ Pack
Dynabrade 94112 7" Dynacut Diamond Segmented Rim Cut-Off Blade
Dynabrade 56205 5" Dia. Non-Vacuum Disc Pad, Vinyl-Face
Dynabrade 50296 5" Dia. Disc Backup Pad, Hard Density, 5/8"-11 Thread
Dynabrade 90297 1/2" W x 18" L Coarse NWN DynaBrite Premium Belts, 10/pack
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
Dynabrade 11011 Idler Arm Assembly
Dynabrade 54040 5/8"-11 Female, 5/16"-24 Female, 1-5/8" Length
Dynabrade 21457 ND3071, Red Plastic Cover
Dynabrade 95216 Pin
Dynabrade 82555 1/2" W x 18" L 60 Grit Ceramic DynaCut Belt, 50/pack
Dynabrade 92153 1/2" W x 12" L 80 Grit Ceramic DynaCut Scalloped Edge Belt, 50/pack 
