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.

Norton 66260311778, Flexible Diamond Disc 2" K-Loc TR 60/70M, 12 Each
ACS Diamond Cloth Belt, CX1250 3/8" X 120" 125U
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052
Standard Abrasives 713286, Mandrel, 1/4 in x 1/4 in x 2 in DM-7, 7000121806
Dynabrade 51301 .5 hp Straight-Line Die Grinder
Dynabrade 14360 Pneumatic Pipe Belt Finisher
Norton 66623335427, 2" Dia Vortex Rapid Prep Quick-Change Non-Woven Abrasive Disc, Medium Grade, 50 Each
Dynabrade 14000 Dynafile Abrasive Belt Tool
Dynabrade 51705 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 50,000 RPM, 3/32" Collet
3M 71346, 675L, 1" X 120", 125u, Diamond Microfinishing Film Belts, 7010534823
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
3M 05205, Marine Adhesive Sealant 5200, Black, 3 oz Tube, 7000118402, 6/Case
Dynabrade 95848 Dynabrade Gear Oil
3M 20928, PSA Cloth Disc 348D, P180 X-weight, 1 in x NH, Die 100N, 7000118917
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 16611, Accuspray Atomizing Head, Clear, 1.8 mm, 7000000500 (4 Nozzles/Kit)
3M 76622, Roloc Disc 777F, 36 YF-weight, TR, 1 in, Die R100N, 7000045618
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
3M 28830, 675L, 1/2" X 72", 74u, Diamond Microfinishing Film Belt 7010508919
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094
3M™ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
Dynabrade 98269 1/2" Female Coupler
3M 71512, Cloth Belt 340D, 50 X-weight, 3 in x 18 in, Fabri-lok, Single-flex, 7010294780, 25 per case
3M 62613, Scotch-Weld Threadlocker TL71, Red, 50 mL Bottle, 7100039231, 10/case
3M™ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
Norton 66261013403 - 3" X 1/2" Extra Coarse Grade Silicon Carbide Bear-Tex Rapid Strip TR Stripping Disc, 10 Each
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
3M 20360, Scotch-Weld Epoxy Adhesive 2216, Gray, Part B, 5 Gallon Drum (Pail), 7000046360
Dynabrade 15420 Dynafile III Abrasive Belt Tool
3M 06506, Scotch Steel Gray Masking Paper, 06506, 6 in x 1000 ft, 6 per case, 7000045440
Dynabrade 69522 Housing for 69500, 5,000 RPM
Dynabrade 18433 Collet Insert, 1/4"
3M 16328, PPS Lid & Liner Kit, Micro (3 fl oz), 125 Micron Full
Diameter Filter, 50 Lids & Liners per kit, 7000045482
3M 29859, Sanding Screen, 100 grit, 12 in x 18 in, 7100160861
3M 77116, Scotch Brite Roloc Deburr & Finish PRO Unitized Wheel, DP-UR, 4C Medium+, TR, 3 in x 1/4 in x NH, 7010295274
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M 47838, EMI Copper Foil Shielding Tape 1181, 23 in x 18 yd (58.42 cm x 16.5 m), 7000058121
Dynabrade 51622 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 35,000 RPM, 3mm Collet
3M 62610, Scotch-Weld Threadlocker TL62, Red, 50 mL Bottle, 7100039196, 10/case
3M 88904, PSA Cloth Disc 348D, 50 X-weight, 12 in x NH, Die 1200B, 7000118897
Dynabrade 95544 Gear Grease, 2.5oz. Tube
3M 08973, Scotch-Weld Epoxy Potting Compound DP270, Clear, 48.5 mL Duo-Pak, 7100148730, 12/case
3M 45038, Wheel Adapter Kit No.3, 5/8-11 External, 7000028423
3M 36516, Green Corps Abrasive File Belt, 40 grit, 1/2 in x 18 in (12.7 mm x 457.2 mm), 7100225352, 20 Belts Per Carton, 5 Cartons Per Case
3M 19677, Scotch-Seal Industrial Sealant 800, Reddish Brown, 1 Gallon Drum, 7000000793, 4/Case
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
Standard Abrasives 708751, PSA A/O Disc, 12 in x NH, 60, 7010370081
3M 43474, Glass Cloth Tape 3615, White, 1 in x 36 yd, 7 mil, 7000048876
3M 22161, Wetordry Paper Disc 431Q, 600 C-weight, 8 in x NH, Die 800L, 7000120330 
