Bonds Well to Polyolefin Based Plastics
Engineered to deliver excellent results, 3M™ Hot Melt Adhesive 3731 provides high heat resistance up to 265?F/129?C without lifting or deformation. This hot melt adhesive bonds well to a variety of substrates and is an ideal adhesive for bonding polyolefin based plastics, including polyethylene and polypropylene. In addition, 3M™ Hot Melt Adhesive 3731 is fast setting, with an open bead time of 30 seconds, for applications requiring quick bond times. Designed to provide good peel strength, 3M™ Hot Melt Adhesive 3731 creates a resilient bond that is long-lasting, offering confidence and peace of mind for a wide range of applications. For use with the 3M™ Hot Melt Applicator EC or 3M™ Hot Melt Applicator TC.
Recommended Applications
- Ideal for bonding polyolefin based plastics
- For applications requiring quick bond times
Understanding Hot Melt Adhesives
Applied with 3M Adhesive Applicators, hot melt adhesives extrude as liquefied thermoplastic to fill gaps and wet entire bonding surfaces before setting. As a result, they often exceed 100 psi shear strength for quick, convenient strength. Hot melt adhesives are used for bonding a wide variety of materials ranging from wood to corrugated cardboard, heat-sensitive foam, plastics and metals. Unlike mechanical fasteners or sealing tapes, hot melt adhesives are virtually invisible between mating surfaces. These 100% solids thermoplastic resins are available in a variety of strengths, temperatures and pen time/bonding ranges to meet your specific application demands.

ACS Diamond Cloth Belt, CX1250 1" X 64" 125U
3M 19766, Utility Cloth Sheet 314D, 9 in x 11 in P240 J-weight, 7000000354
3M 88869, PSA Cloth Disc 777F, 36 YF-weight, 12 in x NH, Die 1200B, 7000120240
Dynabrade 95676 1/4" Female Coupler with 1/4" Male Plug Assembly
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™ 72122, Portable Compressed Air Filter and Regulator Panel 256-02-01, 100 cfm, 8 outlets, with Carbon Monoxide Monitor, 7000052147, 1 EA/Case
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case
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
3M 51034, Roloc Disc 361F, P100 YF-weight, TSM, 2 in, Die RS200PM, 7000119020
3M 03016, Glass Cloth Tape 361, White, 3/4 in x 60 yd, 6.4 mil, 7000047441
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M™ 07011, Supplied Air Respirator Hose W-9435-50/07011(AAD), 7000005373, 1 EA/Case 
