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.

3M 08107, Universal Adhesive Clear, 47.3 mL Cartridge, 7010294717, 6 per case
ACS Diamond Cloth Belt, CX1250 1/2" X 72" 125U
3M 22409, Roloc Disc 361F, P120 XF-weight, TR, 1-1/2 in, Die R150S, 7000045103
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052
Dynabrade 51700 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
3M 22396, Roloc Disc 361F, 36 YF-weight, TR, 1-1/2 in, Die R150S, 7000045091
3M 01326, PSA Cloth Disc 348D, P240 X-weight, 3 in x NH, Die 300V, 7000045069
3M 94539, SecureFit Full Brim Hard Hat H-806SFV-UV, Orange Vented, 4-Point Pressure Diffusion Ratchet Suspension with UVicator, 20ea/CS, 7100239993
3M 11137, Roloc Disc 361F, 50 YF-weight, TR, 1-1/2 in, Die R150S, 7000045094
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
Dynabrade 51731 .1 hp Straight-Line Pencil Grinder, 60,000 RPM, 1/8" Collet
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
3M 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
Dynabrade 51622 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 35,000 RPM, 3mm Collet
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M™ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
Dynabrade 51708 .1 hp Straight-Line Pencil Grinder, 35,000 RPM, 3/32" Collet
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M 54357, Particulate Respirator 8246, R95, with Nuisance Level, Acid Gas Relief, 7000002059, 120 EA/Case
3M 81729, Disc Pad Face Plate Ribbed, 9 in Hard Black, 7000148244 
