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.

3M 27253, Ultra Durable 5 inch Power Sanding Discs, Universal Hole, 80 grit, 7100188459, 5 per pack
3M 08858 Scotch-Brite Surface Conditioning Belt, 1/2 in x 18 in, A CRS, 7000028455
Dynabrade 94980 1/4" Composite-Style Coupler, 1/4" Male
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M 26141, PPS Series 2.0 Adapter, Type S44, 3/8 Female, 19 Thread BSP, 7100158892
3M™ 72122, Portable Compressed Air Filter and Regulator Panel 256-02-01, 100 cfm, 8 outlets, with Carbon Monoxide Monitor, 7000052147, 1 EA/Case
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
Dynabrade 51624 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 35,000 RPM, 3mm Collet
3M 81729, Disc Pad Face Plate Ribbed, 9 in Hard Black, 7000148244
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
3M 20245, HOOK AND LOOP DISC PAD HOLDER 20245, 7 IN X 7/8 IN CENTER POST 5/8-11 INTERNAL, 7010360340
3M 05682, Disc Pad Holder, 3M 916, 6 in x 1/8 in x 3/8 in 5/8-11 Internal, 7000120890
3M 26583, Accuspray Refill Pack for PPS Series 2.0, Green, 1.3 mm, 7100152953
3M 87147, PSA Cloth Disc 777F, 5 x NH, 36 YF-weightt, 7010308524
Dynabrade 51708 .1 hp Straight-Line Pencil Grinder, 35,000 RPM, 3/32" Collet
3M 923, Disc Pad Holder, 3 in 1/4 in Shank, 7000120560
3M 62616, Scotch-Weld Threadlocker TL90, Green, 50 mL Bottle, 7100039236, 10/case
3M 5681, Disc Pad Holder 915, 5 in x 1/8 in x 3/8 in M14-2.0 Internal, 7000028500
Dynabrade 78122 2" Dia. Medium NWN DynaBrite Locking-Type Disc, 25/pack
ACS CX1250 Diamond Belt, 1/2" X 24" 250u
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
3M 22404, Roloc Disc 361F, 80 YF-weight, TR, 3 in, Die R300V, 7000045100
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 51731 .1 hp Straight-Line Pencil Grinder, 60,000 RPM, 1/8" Collet
3M 36880, Self-Stick Liquid Protection Fabric, Blue, 36 in x 300 ft, 7100169352
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
Dynabrade 31920 - 1-1/4" (32 mm) Static Conductive Hose, Black
ACS 2" Diamond Disc, 60 Mesh, W/ Metal Button
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
3M 05612, Polyurethane Glass Adhesive Sealant 590, Black, 600 mL Sausage Pack, 7000121536, 12/Case
Dynabrade 14360 Pneumatic Pipe Belt Finisher
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
Dynabrade 51812 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 3/32" Collet
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
3M 08857 Scotch-Brite Surface Conditioning Belt, SC-BS, A/O Medium, 1/2 in x 18 in, 7000028454, 48011088570
3M 66630, Cloth Belt 341D, 50 X-weight, 6 in x 48 in, Film-lok, Single-flex, 7000118864, 20 per case
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
3M 26128, PPS Series 2.0 Adapter, Type S33, 1/8 Female, 27 Thread NPT, 7100135950
3M 92297, Drywall Quick Clip Pole Sander DRPS-0010, 3-5/16 in x 9-1/4 in, 7010332448
3M 47182, Polyurethane Adhesive Sealant 550FC Fast Cure, Gray, 600 mL Sausage Pack, 7100197990, 12/Case 
