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™ 72122, Portable Compressed Air Filter and Regulator Panel 256-02-01, 100 cfm, 8 outlets, with Carbon Monoxide Monitor, 7000052147, 1 EA/Case
3M 20942, Scotch-Weld Urethane Adhesive 3549, Brown, Part A, 5 Gallon Drum, (Pail), 7100041738
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case
3M™ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
3M 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
Dynabrade 97570 1/2" NPT Female Safety Coupler
3M™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
3M 35832, Hookit Dust Extraction Flexible Radius Sanding Block, 273 mm x 66 mm, 7100256499
3M 62607, Scotch-Weld Threadlocker TL42, Blue, 250 mL Bottle, 7100039192, 2/case
Air Turbine Tools 310RSV - 1/4" Router Hand Tool Series with Brake, 30,000RPM, 33434
3M 14345, Marine Adhesive Sealant 4000 UV, Black, 3 oz Tube, 7010367954, 6/Case
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
3M 82238, Scotch-Weld Epoxy Adhesive 420, Off-White, Part B, 5 Gallon Drum(Pail), 7100001145
Norton 66254432925 Wheel, 3" X 1/2" X 1/4" Bear-Tex, Rapid Blend, Non-Woven 5 Density, A/O, M Grit, 20 Each
Standard Abrasives 713638, Cartridge RoII Mandrel, 3/32 in x 3/4 in x 1/8 in x 1 in x 2-3/4 in CM-2B, 7010294964
3M 20907, PSA Cloth Disc 348D, P120 X-weight, 2 in x NH, Die 200P, 7000118875
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
3M 27359, Cloth Belt 970DZ, 24 YN-weight, 25 in x 75 in, Film-lok, Single-flex, 7010361224, 2 per case
Standard Abrasives 840031, Quick Change Surface Conditioning FE Disc, A/O Coarse, TSM, Brown, 3/4 in, QS75KM, 7000046845, 50/case
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
3M 20908, PSA Cloth Disc 348D, P100 X-weight, 2 in x NH, Die 200P, 7000118874
3M 16580, Accuspray ONE Spray Gun System with Standard PPS, 7100099202
3M 76750, Roloc Disc 777F, 60 YF-weight, TS, 2 in, Die RS200P, 7010299188
3M 97958, Foam Fast Spray Adhesive 74 CA, Low VOC <25%, Orange, 24 fl oz Can (Net Wt 19.0 oz), 7100014104, 12/Case
3M 95307, Lead Foil Tape 421, Dark Silver, 3/4 in x 36 yd, 6.3 mil, 7000049079
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M 85393, Cloth Belt 777F, P120 YF-weight, 2 in x 48 in, Film-lok, L-flex, 7000118464, 50 per case
3M 14593, Scotch-Brite Cut and Polish Disc, 3" x 1-1/4" x 1/4" A Medium, D5, 7000045941, Box of 10
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
3M 02960, Scotch-Brite Cut and Polish Wheel, CP-WL, 5A Fine, 6 in x 1 in x 1 in, 7100009186, Box of 3
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M™ 07010, Supplied Air Respirator Hose W-9435-25/07010(AAD), 25 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure, 7000005374, 1 EA/Case
3M 14316, Marine Adhesive Sealant 4000 UV, Black, 295 mL Cartridge, 7010367955, 12/Case 
