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 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust
3M 23354, Home Dust Mask, 8661P4-DC, 7100159312, 4 Each/Pack
3M Flatback Tape 2517, Medium Brown, 36 mm x 55 m, 6.5 mil, 24Rolls/Case, 7000088501
3M 21511, Filter Adapter 502, 7000001931, 100 EA/Case
3M 28022, 8210 Plus Performance Sanding and Fiberglass Respirator 8210PH3-DC, 7100200441, 3 each/pack
3M 17322, Versaflo Respiratory Helmet Assembly M-405, with Standard Visor and Shroud, 7100009447, 1 EA/Case
3M 37339, Versaflo Powered Air Purifying Respirator PAPR Assembly TR-613N, Std Battery, BT-30 Breathing Tube, HD Belt, 7100035757, 1 EA/Case
3M 37378, Versaflo Filter Cover TR-6800FC/37378(AAD), for TR-6820N Filter, 7100021247, 1 EA/Case
3M 94246, Versaflo Powered Air Purifying Respirator Heavy Duty Assembly TR-813N/94246(AAD), 7100150924, 1 EA/Case
3M 94250, Versaflo Powered Air Purifying Respirator Heavy Industry Kit TR-800-HIK, 7100150927, 1 EA/Case
3M 94249, Versaflo Powered Air Purifying Respirator Easy Clean Kit TR-800-ECK, 7100150926, 1 EA/Case
3M 37348, Versaflo High Capacity Battery TR-632/37348(AAD), for TR-600 PAPR, 7100035836, 1 EA/Case
3M 33274, Performance Multi-Purpose Respirator 62023P1-DC, 7010296017
3M 17249, Versaflo Economy Headcover, S-103S-20, Small/Medium, 7000127462, 20 EA/Case
3M 90478, Sanding and Fiberglass Respirator N95 Particulate, 8200H10-DC, 7100160237, 10 Each/Pack
3M 37347, Versaflo Standard Battery TR-630/37347(AAD), for TR-600 PAPR, 7100035835, 1 EA/Case
3M 94933, Paint Sanding Valved Respirator 8511P2-C-PS-WM, 7100157701, 2 Each/Pack
3M 66278, Replacement Particulate Filter 5P71-6, P95, 7010301693, 6/Box
3M 37005, Head Harness 6897/37005(AAD), 7000002035, 5 EA/Case
3M 76550, Sealed-Seam Respirator Hood H-610-5, Collar, 7000126317, 5 EA/Case
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander 
