Eliminate Mess and Downtime
Mixing sealer components by hand often results in a big mess and waste of materials and time. Our high-performance 3M™ Heavy-Bodied Seam Sealer operates with a two-part cartridge and nozzle that self-mixes with a perfect formulation every time and without the mess. This efficient system helps reduce application waste, improves efficiency, and remains ready for job after job with no downtime for mixing mistakes.
Match OEM Appearances
This professional-quality black seam sealer can be used to seal vertical or horizontal seams on automotive surfaces primed with a 2K urethane, 2K epoxy primer, or clean, sanded paint. Its non-flowing, heavy-bodied formula allows technicians to texturize the seam to match OEM seam sealer appearances and duplicate OEM beads.
Durable, Fast-Cure Formula Creates a High Quality Seal
Our flexible formula works within a wide range of temperatures with no shrinking or cracking to achieve strong, durable construction. It offers a fast setup time of 6 minutes, decreasing downtime and allowing technicians to continue repair procedures quicker, increasing productivity. Moreover, the fast-cure formula means there is a limited time of uncured product on the car and the risk of damaging the seam by disturbing uncured seam sealer is greatly reduced. This enables technicians to quickly achieve a long-lasting, high quality seam seal.
Using the Seam Sealer Effectively
Our 3M™ Heavy-Bodied Seam Sealer for DMS (PN 58308) comes in a kit that includes a 600 mL cartridge, two “purple” mixing nozzles (PN 55847, also available in boxes) and an extension tube for attaching an OEM tip to the mixing nozzle. The 600 mL cartridges fit into our 3M™ Dynamic Mixing Applicator – Pneumatic (PN 05846).
3M™ Heavy-Bodied Seam Sealer in 200 mL cartridges (PN 08308) can be used with the following 3M™ Applicators: PN 08117 (manual), PN 08571 (manual), and PN 09930 (pneumatic) Also use the 3M™ Mix Nozzle: PN 08193 (6/bag), PN 8194 (50/box).
For either product, choose from 3M™ OEM Seam Sealer Tips PNs 08201, 08202, 08203, 08204, or 08205.
About DMS, a Self-Mixing System
Our 3M™ Dynamic Mixing System (DMS) increases job productivity while ensuring the body repair quality you’ve come to expect from 3M. With the Dynamic Mixing System, you dispense fillers, glazes, adhesives, sealers and plastic repair products when and where you want them, at the touch of a trigger. There is no messy mixing process, no wasted materials, and no lost time cleaning up. By utilizing the correct amount of product and reducing consumption, you save both materials and time.
3M Science Meets the Needs of Automotive Professionals
3M used science to create a sealer that combines toughness with flexibility. 3M™ Heavy-Bodied Seam Sealer is ideal for lasting seam sealing protection on many different surfaces, and allows technicians to expertly recreate OEM seam sealer appearances. This formula, along with the self-mixing 3M™ Dynamic Mixing System, represents another way that 3M applies science to improve working conditions and productivity in the automotive industry.

3M 20931, PSA Cloth Disc 348D, P100 X-weight, 1 in x NH, Die 100N, 7000118915
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
Dynabrade 02084 Angle Housing Assembly,Steel, Rear Exhaust
3M 00550, DynatronAuto Seam Sealer Caulk, 550, Grey, 12 oz, 7000125068, 12 per case
3M 20930, PSA Cloth Disc 348D, P120 X-weight, 1 in x NH, Die 100N, 7000118916
3M 36881, Self-Stick Liquid Protection Fabric, Blue, 48 in x 300 ft, 7100169351
3M 95442, Selfwound PVC Tape 1506R, Black, 1-1/2 in x 36 yd, 6 mil, 24 rollsper case, 7100043914
3M 28830, 675L, 1/2" X 72", 74u, Diamond Microfinishing Film Belt 7010508919
3M 00705, Interam Stainless Steel Foil Tape T-65, 4 in x 100 ft, 7100024280
3M 51034, Roloc Disc 361F, P100 YF-weight, TSM, 2 in, Die RS200PM, 7000119020
ACS CX1250 Diamond Belts, 1/2" X 24" 200u
Standard Abrasives 42636, A/O Flap Wheel 622405, 1-1/2 in x 1 in x 1/4 in 60, 7010369111, 10 per case
3M™ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
3M 06518, Scotch Steel Gray Masking Paper, 06518, 18 in x 1000 ft, 2 per case, 7000045441
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case
Standard Abrasives 708751, PSA A/O Disc, 12 in x NH, 60, 7010370081
3M Scotchkote Liquid Epoxy Coating Spray System HSS Mix Nozzle, RightAngle, 7000058900
Dynabrade 11254 Contact Arm Ass'y, 4-3/4" Dia. x 1/2" W
3M 71878, Flexible Diamond Hand File 6210J, Yellow 18, N40, NO 1, 7000082156, 10 per case
3M 02960, Scotch-Brite Cut and Polish Wheel, CP-WL, 5A Fine, 6 in x 1 in x 1 in, 7100009186, Box of 3
3M 10115, Synthetic Steel Wool Pads, #3 Coarse, 7000051986
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M 06536, Scotch Steel Gray Masking Paper, 06536, 36 in x 1000 ft, 1 per case, 7000045443
Dynabrade 51750 .1 hp Straight-Line Extension Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 77197, Scotch-Brite™ Roloc™ Deburr and Finish PRO Unitized Wheel,TR, 3 in x 1/8 in x NH, 8C CRS+, 7100109130, 40/box
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
3M 76632, Roloc Disc 777F, 50 YF-weight, TR, 3 in, Die R300V, 7000045628
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M 71346, 675L, 1" X 120", 125u, Diamond Microfinishing Film Belts, 7010534823
3M™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
3M™ 07012, Supplied Air Hose W-9435-100/07012(AAD), 100 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure, 7000005375, 1 EA/Case
3M 10120, Synthetic Steel Wool Pads, 10120NA, #000 Extra Fine, 7000126149
3M 08365, Urethane Seam Sealer, Beige 310mL Cartridge, 7100024963, 12 per Case
3M 06524, Scotch Steel Gray Masking Paper, 06524, 24 in x 1000 ft, 1 per case, 7000045442
3M 98242, Marine Adhesive Sealant 3000 UV, Black, 290 mL Cartridge, 7100111111, 12/Case 
