Multi Purpose Sealant with Good UV Resistance
3M Polyurethane Sealant 540 is a single component, moisture curing, polyurethane sealant used to bond a wide variety of materials, including plastics, fiberglass reinforced plastic (FRP), sheet molding compound (SMC), aluminum, steel, coated metal and wood. It exhibits high tensile strength, good UV resistance, low Shore A hardness and low modulus to maintain its functionality in a wide range of extreme service environments. Available in cartridge, sausage pack, pail and drum volumes to meet your application needs.
Recommended Applications
- Vertical and horizontal panel bonding and joint sealing
- Aluminum curtain walls and storefronts
- Transportation manufacturing (bus, rail, truck, trailer)
- Replacement of mechanical fasteners in many situations
Paintable after Skin Forms for Improved Appearance
3M Polyurethane Sealant 540 offers an alternative to mechanical fasteners and can replace rivets in some applications. It will bond dissimilar substrates and a wide selection of materials. This will perform in temperatures ranging from 40?F/ 40?C to 194?F/90?C. Once skin forms (60 90 minutes), the sealant can be painted to improve the final finish.
Understanding Polyurethane Sealants
Polyurethane sealants provide strong, flexible durable elastomeric bonds that seal against the elements. These sealants excel in challenging industrial, transportation and construction applications. Polyurethane sealants are available in a wide variety of Shore A hardness, open time and colors to meet many application needs. Choose a 3M Manual or Pneumatic Applicator for dispensing 3M adhesives sealant cartridges and 400ml/600ml sausage packs.
Bringing Better Ideas to the Surface through Science and Innovation
In our 3M Industrial Adhesives and Tapes Division, we apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, our technologies help customers like you deliver competitive products to the market faster and more efficiently.

Dynabrade 78182 3" Dia. Medium DynaBrite Locking-Type Disc, 25/pack
Insize HDT-LP200-C, IMPACT DEVICE C for HDT-LP200, 6940561948417
ACS 2" Diamond Roloc Disc, 800 Mesh, W/ Plastic Button
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
Dynabrade 78402 2" Dia. x 1/2", Dyna Premium Rapid Strip TR Disc, 25/pack
Dynabrade 95544 Gear Grease, 2.5oz. Tube
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
ACS CX1250 Diamond Belts, 1/2" X 24" 200u
3M 24049, Wetordry Cloth Disc 281W, P1000 YF-weight, 8 in x NH, Die 800JM, 7000045052
3M Scotchkote Liquid Epoxy Coating Spray System HSS Mix Nozzle,Straight, 7000031879
Standard Abrasives 713159, Aluminum Oxide Handy Roll, P120 J-weight, 1-1/2 in x 50 yd, 7010290409
3M 49937, Roloc Disc 361F, 60 YF-weight, TSM, 2 in, Die RS200PM, 7000119016
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
3M 07958, Sanding Screen, 80 Grit, 7-7/8 in x 3/16 in, 7100160277
3M 05206, Marine Adhesive Sealant 5200, White, 1 oz Tube, 7010325697, 12/Case
3M™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
3M 29827, Sanding Screen, 120 Grit, 19 in x NH, 7100160249
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
3M 41597, Polyurethane Adhesive Sealant 560, Black, 310 mL Cartridge, 7100005901, 12/Case
3M 70894, 641WY 1/2" X 24", 100 Mesh Diamond Cloth Belt, 7010533228
Dynabrade 11518 Rubber Drive Wheel
3M 26125, PPS Series 2.0 Adapter, Type S29, 8 mm Male, 1.25 mm Thread, 7100135955
3M 92297, Drywall Quick Clip Pole Sander DRPS-0010, 3-5/16 in x 9-1/4 in, 7010332448
Dynabrade 15420 Dynafile III Abrasive Belt Tool
3M 05209, Hookit Sanding Block D/F, 70MM x 396MM, 7000028312
3M 03647, Scotch-Brite Edger Disc Pad, 7 in x .875 in, 7000133920
Dynabrade 51301 .5 hp Straight-Line Die Grinder
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™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
Dynabrade 51330 .7 hp Router, Front Exhaust, 20,000 RPM, 3/8"-24 Spindle
Dynabrade 51705 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 50,000 RPM, 3/32" Collet
3M 16584, Accuspray Atomizing Head, Orange, 1.4 mm, 7100078992
3M 18451, Scotch-Brite Heavy Duty Hand Pad 7440B, HP-HP, A/O Medium, 6 in x 9 in, 7000000715, 40 ea/Case
3M 48236, General Purpose Glass Cloth Tape 3615, White, 2 in x 36 yd, 7 mil, 3615, 7000123894
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 06840, Booth Coating, 5 gal, 7000120531
Dynabrade 14360 Pneumatic Pipe Belt Finisher
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
3M 03016, Glass Cloth Tape 361, White, 3/4 in x 60 yd, 6.4 mil, 7000047441
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
Dynabrade 51740 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet, with Mount Stem
3M 29847, Sanding Screen, 60 grit 16 x NH, 7100160824
Dynabrade 11477 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 29822, Sanding Screen, 120 Grit, 20 in x NH, 7100160250
3M 20927, PSA Cloth Disc 348D, P240 X-weight, 1 in x NH, Die 100N, 7000118918
3M 86745, Diamond Disc, 2" Roloc, 674W, 120 Mesh, TR, 7100022116, Box of 10
3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case
3M 71878, Flexible Diamond Hand File 6210J, Yellow 18, N40, NO 1, 7000082156, 10 per case
3M 06504, Marine Adhesive Sealant 5200, Black, 295 mL Cartridge, 7000042727, 12/Case
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
3M 15913, Scotch-Brite Roloc Disc High Strength, TR, 2 in X NH A Medium, 7000000710
3M™ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
Dynabrade 90873 2" Dia. Medium NWN DynaBrite Locking-Type Disc, 25/pack
3M 94717, Cubitron ll Cloth Belt 947A, 80+ X-weight, 1 in x 30 in, Fabri-lok, Single-flex, 7010294445, 200 per case
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
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
Norton 66254497067 - 2" X 1/4" 100 - 150 Grit Medium Grade Aluminum Oxide Vortex Rapid Blend Blue TR Non-Woven Abrasive Disc, 25 Each
3M 62610, Scotch-Weld Threadlocker TL62, Red, 50 mL Bottle, 7100039196, 10/case
3M 80516, Disc Pad Face Plate Ribbed 80516, 7 in Medium Gray, 7000120515 
