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 22405, Roloc Disc 361F, P100 YF-weight, TR, 3 in, Die R300V, 7000045102
3M 50018, Venture Tape Metallized Cloth Duct Tape 1502, Silver, 48 mm x 55 m (1.88 in x 60.1 yd), 7010337385
3M 50022, Venture Tape Xtreme Cloth Duct Tape 1557, Black, 48 mm x 55 m (1.88 in x 60.1 yd), 7010378552
3M™ 07011, Supplied Air Respirator Hose W-9435-50/07011(AAD), 7000005373, 1 EA/Case
Norton 66261013403 - 3" X 1/2" Extra Coarse Grade Silicon Carbide Bear-Tex Rapid Strip TR Stripping Disc, 10 Each
3M 49833, Multi-Purpose Duct Tape 3900, Black, 48 mm x 54.8 m, 7.7 mil, 7000148383
3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
3M 98514, Premium Matte Cloth (Gaffers) Tape GT2, Black, 48 mm x 50 m, 11 mil, 7010336132
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
3M 97841, Value Duct Tape 1900, Silver, 1.88 in x 60 yd, 5.8 mil, 7010375734
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
3M 22394, Roloc Disc 361F, 50 YF-weight, TR, 3 in, Die R300V, 7000045096
3M 53915, Performance Plus Duct Tape 8979N (Nuclear), Red, 72 mm x 54.8 m, 12.1 mil, 7010334653
Dynabrade 22092 2-3/4" x 17" Hand Sanding Block
Dynabrade 51333 .7 hp Router, 4" Base, Central Vacuum, 20,000 RPM, 1/4 Collet
3M 98534, Premium Matte Cloth (Gaffers) Tape GT3, Black, 72 mm x 50 m, 11 mil, 7010291525
Insize 0130-L110, LIGHT METER (BASIC TYPE), 6974029776564
3M 00705, Interam Stainless Steel Foil Tape T-65, 4 in x 100 ft, 7100024280
3M 16314, PPS Lid & Liner Kit, Mini (6 fl oz), 125 Micron Full
Diameter Filter, 50 Lids & Liners per kit, 7000045487
3M 65489, Pro Grade Precision Ultra Durable Universal Hole Sanding Disc, DUH5120TRI-10T, 5 IN x UH, 120, 7100202877, 10 per pack
Dynabrade 51756 .1 hp Straight-Line Extension Pencil Grinder, Rear Exhaust, 35,000 RPM, 1/8" Collet
3M 26022, PPS Series 2.0 Adapter, Type S12, 10 mm Male, 1.0 mm Thread, 7100135943
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
3M 53036, 663FC, 1/2" X 90", 20u, Diamond Trizact Belt 7100205970
3M™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
3M 59803, Hand-Masker Film Blade FB12-SC, 12 in (30.4 cm), 7100283144
Dynabrade 95848 Dynabrade Gear Oil
3M 20105, Scotch-Weld Epoxy Adhesive 1751, Gray, Part B/A, 1 Gallon Kit, 7000046339, 2/case
3M 05280, Marine Adhesive Sealant 4000 UV, White, 3 oz Tube, 7000121531, 6/Case
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 10115, Synthetic Steel Wool Pads, #3 Coarse, 7000051986
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
3M 20276, Neoprene Contact Adhesive 10, Light Yellow, 5 Gallon Pour Spout Drum (Pail), 7000121218
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 77116, Scotch Brite Roloc Deburr & Finish PRO Unitized Wheel, DP-UR, 4C Medium+, TR, 3 in x 1/4 in x NH, 7010295274
3M 47191, Polyurethane Adhesive Sealant 550FC Fast Cure, White, 400 mL Sausage Pack, 7100197999, 12/Case
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
3M 26583, Accuspray Refill Pack for PPS Series 2.0, Green, 1.3 mm, 7100152953
3M 62818, Adhesive Sealant 760 UV, Black, 600 mL Sausage Pack, 7000121496, 12/Case 
