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.

3M 00705, Interam Stainless Steel Foil Tape T-65, 4 in x 100 ft, 7100024280
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
Standard Abrasives 705819, A/O Straight Cartridge Roll, 5/16 in x 1-1/2 in x 1/8 in 80, 7100085866
3M 06536, Scotch Steel Gray Masking Paper, 06536, 36 in x 1000 ft, 1 per case, 7000045443
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
3M 15913, Scotch-Brite Roloc Disc High Strength, TR, 2 in X NH A Medium, 7000000710
3M 05009, Utility Cloth Roll 211K, 100 J-weight, 1 in x 50 yd, Full-flex, 7100016843
3M 08023, Adhesive Sealant 740 UV, White, 600 mL Sausage Pack, 7000000933, 12/Case
3M 06504, Marine Adhesive Sealant 5200, Black, 295 mL Cartridge, 7000042727, 12/Case
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
3M 45722, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 6 in x NH, D/F 6HL, Die 600HZ, 7100113871
3M 93623, Steel Mesh Viso V4G-10P 10 ea/Case, 7000103815
3M 14593, Scotch-Brite Cut and Polish Disc, 3" x 1-1/4" x 1/4" A Medium, D5, 7000045941, Box of 10
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 715081, A/O Straight Cartridge Roll, 5/8 in x 2 in x 3/16 in 60, 7100102991
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
Dynabrade 51810 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 1/8" Collet
3M 45703, Cubitron II Hookit Cloth Disc 947A, 40+ X-weight, 5 in x NH, Die 500X, 7100113120
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168
Standard Abrasives 702309, A/O Straight Cartridge Roll, 1/4 in x 1 in x 1/8 in 240, 7100080029
Standard Abrasives 713296, Aluminum Oxide Handy Roll, P320 J-weight, 2 in x 50 yd, 7100034517
3M 10119, Synthetic Steel Wool Pad 10119NA, 0000 Super Fine, 7000126181
Standard Abrasives 850034, Unitized Wheel Steel Screw Mandrel, 7/8 in x 1/4 in Shank, 7000121879
Air Turbine Tools 310RDM - 6mm Router Hand Tool Series, 25,000RPM, 33423
3Mâ„¢ 94275, Versafloâ„¢ Gold Coated Tinted Over-Visor with UV/IR Protection M-967N, 70071696879, 1 EA/Case
Dynabrade 11475 Dynabelter Abrasive Belt Tool, Standard Duty
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
Dynabrade 02084 Angle Housing Assembly,Steel, Rear Exhaust
ACS Flap Disc, Type 29 (Curved) Full Diamond 4-1/2 X 5/8-11 60M, 333.FD4.5-60/T29
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
Dynabrade 51330 .7 hp Router, Front Exhaust, 20,000 RPM, 3/8"-24 Spindle
3M 10116, Synthetic Steel Wool Pads, 10116NA, #2 Medium, 2 in x 4 in, 7000047708
3M 08107, Universal Adhesive Clear, 47.3 mL Cartridge, 7010294717, 6 per case
Norton 66261014792 - 2" Medium Grade Aluminum Oxide Bear-Tex Speed-Lok High Strength Maroon TR Non-Woven Abrasive Disc 160 Each
3M 10118, Synthetic Steel Wool Pads, 10118NA, #0 Fine, 7000126148
3M 49938, Roloc Disc 361F, 80 YF-weight, TSM, 2 in, Die RS200PM, 7000119019
3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
ACS Diamond Cloth Belt, CX1250 1/4" X 24" 75U
3M 76624, Roloc Disc 777F, 60 YF-weight, TR, 1 in, Die R100N, 7000045620
3M 77197, Scotch-Briteâ„¢ Rolocâ„¢ Deburr and Finish PRO Unitized Wheel,TR, 3 in x 1/8 in x NH, 8C CRS+, 7100109130, 40/box
Norton 66623335427, 2" Dia Vortex Rapid Prep Quick-Change Non-Woven Abrasive Disc, Medium Grade, 50 Each
3Mâ„¢ 72122, Portable Compressed Air Filter and Regulator Panel 256-02-01, 100 cfm, 8 outlets, with Carbon Monoxide Monitor, 7000052147, 1 EA/Case
3M 45720, Cubitron II Hookit Cloth Disc 947A, 60+ X-weight, 6 in x NH, D/F 6HL, Die 600HZ, 7100113076
3M 10120, Synthetic Steel Wool Pads, 10120NA, #000 Extra Fine, 7000126149
Standard Abrasives 714175, A/O Straight Cartridge Roll, 5/8 in x 1-1/2 in x 1/8 in 80, 7100103032
Dynabrade 79109 1/2" W x 12" L 80 Grit DynaCut Premium Ceramic Belts, 50/pack
Dynabrade 51740 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet, with Mount Stem
Dynabrade 98273 - 1/2" Female Coupler with 1/2" Male Plug Assembly
3M 64324, Foil Tape 3340, Silver, 72 mm x 45.7 m, 3.9 mil, 7010335734
Dynabrade 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust
3M 45557, Cubitron ll Cloth Belt 784F, 60+ YF-weight, 2 in x 72 in, Film-lok, Single-flex, 7010299100, 50 per case
3M 45712, Cubitron II Hookit Cloth Disc 947A, 60+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113119
3M 47201, Polyurethane Sealant 540, Black, 600 mL Sausage Pack, 7100198009, 12/Case 
