Create Tight, Long-Lasting Seals
3M™ Urethane Seam Sealer is an excellent choice when sealing interior or exterior seams to help prevent the intrusion of water, dust, and air, aiding in providing corrosion resistance at these locations. Choose this seam sealer for high-quality sealing of seams and joints on primed metal or painted surfaces, and even on bare metal. It applies easily and is formulated for long-lasting support to the seam without shrinking, cracking, or causing unpleasant odors.
Fill in Gaps with Confidence
With its thick consistency, our 3M™ Urethane Seam Sealer is an excellent gap sealer and you can feel confident using this sealer to fill large voids between parts where they occur. Designed to be used over epoxy or urethane based primers, the sealer comes in several colors to enable color matching. Note that the sealer should be top coated when exposed to ultra violet rays.
Excellent Performance in High Heat and Humidity
While some seam sealers require cure time in a completely dry environment, our 3M™ Urethane Seam Sealer is moisture-curing so it provides a reliable seal regardless of moisture or humidity in the air. It can be painted after 30-45 minutes.
Rigid or Flex Pack Options
This sealer comes in either a flexible foil pack or rigid metal cartridge. Application of the cartridge sealer requires the use of a 3M™ Single Component Cartridge Applicator Gun – pneumatic (08990) or 3M™ Professional Caulking Gun (08993), and 3M™ Threaded Cartridge Nozzles (08187). Foil packs are designed for use with 3M™ Flexible Package Applicator Gun – Pneumatic (08399) or 3M™ Flex Pack Applicator (08398) these include one applicator nozzle, additional nozzles may be acquired as PN (08188).
3M Science Meets the Needs of Automotive Professionals
3M™ Urethane Seam Sealer was formulated for general repairs that require long-lasting hold, easy curing, and appearance matching. 3M™ Urethane Seam Sealer is ideal for lasting seam sealing protection on many different surfaces, including bare metal, and allows technicians to expertly recreate OEM appearances. This expert formula represents another way that 3M applies scientific knowledge and ingenuity to the automotive industry.

Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
3M 35830, Hookit Dust Extraction Flexible Radius Sanding Block, 133 mm x 66 mm, 7100256625
Standard Abrasives 32929, PSA A/O Disc, 709607, 1/2 in x NH, 120, 7100037906
3M 77512, Cloth Belt 777F, 60 YF-weight, 1 in x 42 in, Film-lok, Single-flex, 7010307736, 200 per case
3M 36879, Self-Stick Liquid Protection Fabric, Blue, 28 in x 300 ft, 7100169496
3M 06840, Booth Coating, 5 gal, 7000120531
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
Dynabrade 51812 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 3/32" Collet
3M™ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
3M 98242, Marine Adhesive Sealant 3000 UV, Black, 290 mL Cartridge, 7100111111, 12/Case
3M 35790, 675L, 1" X 120", 74u, Diamond Microfinishing Film Belts, 7010509196
3M 67925, Cloth Belt 777F, P120 YF-weight, 1/2 in x 12 in, Fabri-lok, Single-flex, 7010363457, 200 per case
3M 04028, Scotch-Brite Hand Pad 7448, HP-HP, SiC Ultra Fine, Gray, 6 in x 9 in, 7100089226, 60/case
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
ACS CX1250 Diamond Belt, 1/2" X 24" 30u
3M 87449 Silver Depressed Center Grinding Wheel, T27 Quick Change, 9 in x 1/4 in x 5/8-11 Center Hub Thread, 7010409732, 20 per case
3M 05442, Stikit Soft Hand Block, 2-3/4 x 5 in, 7000045435
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 85391, Cloth Belt 963G, 50 YN-weight, 2 in x 72 in, Film-lok, L-flex, 7010299930, 50 per case
3M 01332, PSA Cloth Disc 348D, 80 X-weight, 3 in x NH, Die 300V, 7000118881
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
3M 25125, Scotch-Weld Threadlocker TL71, Red, 1 mL Pipette, 7010330204, 100/case
Standard Abrasives 710190, Cartridge Roll Mandrel, 2560020, 1/8 in x 1 in x 1/4 in x 1-1/4 in x 2-3/4 in CM-9, 7000121790
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
3M 14270, Disc Pad Face Plate, 4-1/2 in Hard Black, 7000144144 
