Provides Extreme Temperature Stability 300F / 149C for a Durable Bond
3M™ Hot Melt Adhesive 3779 offers strong resistance to heat, impact, fuel and oil. It is manufactured using 100% solids, thermoplastic resin for use with a 3M™ Hot Melt Applicator. This adhesive offers extreme temperature stability (300F / 149C) and is excellent for electronics and potting. This product supports high-tempo productivity with a 25-second open time that is sufficient for fit positioning and adjusting. In addition, 3M™ Hot Melt Adhesive 3779 has a low odor to help maintain a comfortable work environment. This product will bond wood, polypropylene, electronics, vinyl and lightweight substrates on furniture, automotive interiors, outdoor applications, small appliances and general product assembly.
Recommended Applications
- Headliner fixturing and attachment
- Wire harness attachments
- Electronics potting
- Metal and plastic bonding in appliances
- Attaching trim
Understanding Hot Melt Adhesives
Hot melt adhesives, also known as glue sticks, are liquefied thermoplastic adhesives available in both low and high-temperature versions. Low temperature hot melt adhesives are applied at 250F / 121C temperatures, which makes them ideal for bonding electronics, plastics, cloth and other heat sensitive materials. High temperature hot melt adhesives are applied at 380F / 193C and produce a stronger bond than the low temperature hot melts.
Melted adhesive is extruded through a nozzle using a 3M Hot Melt Applicator by either pneumatic pressure, a mechanical trigger mechanism, or with pressure applied directly on the stick. Different nozzles can be used to apply thin, wide strips or narrow, thicker beads. Hot melt adhesive generally sets quickly, ranging from a few seconds to a few minutes, depending on the adhesive formulation.
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™ 07012, Supplied Air Hose W-9435-100/07012(AAD), 100 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure, 7000005375, 1 EA/Case
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
Air Turbine Tools 310RSV - 1/4" Router Hand Tool Series with Brake, 30,000RPM, 33434
Dynabrade 14000 Dynafile Abrasive Belt Tool
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Dynabrade 95848 Dynabrade Gear Oil
Dynabrade 51854 .4 hp Trim Router (Complete), 30,000 RPM, 1/4 Collet
Standard Abrasives 704491, Cartridge Roll Mandrel, 3/16 in x 3/4 in x 1/4 in x 1 in x 2-3/4 in CM-15, 7000121768
3M 52980, 663FC, 2" X 90", 20u, Diamond Trizact Belts, 7100205967, 2/Box
3M 34784, 663FC, 2" X 48", 20u, Diamond Trizact Belts, 7010509133
3M 64935, Scotch-Brite Hand Pad 7448 PRO, PO-HP, SiC Ultra Fine, 6 in x 9 in, 7100023340, 20/Carton
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
3M 96028, Venture Tape Self Seal Lap Tape 2C250, FB483, 37.12 mm x 54.864 m, 0.01 mm, 7010296295
3M 85563, Heavy Duty Duct Tape 3939, Silver, 96 mm x 54.8 m, 9.0 mil, 7100022015
3M 10112, Heavy Duty Stripping Pads, 3 3/4 in x 6 in x 7/16 in, 7010290303
3M 08976, Scotch-Weld Epoxy Adhesive DP100 Plus, Clear, 48.5 mL Duo-Pak, 7100148750, 12/case
3M 29902, Sanding Screen, 150 Grit, 12 in x 18 in, 7100160763
3M Scotchkote Liquid Epoxy Coating Spray System HSS Mix Nozzle, RightAngle, 7000058900
3M 05526, Wetordry Sponge Pad 20, 5-1/2 x 2-3/4 in x 3/8 in, 7000045663
ACS CX1250 Diamond Belt, 1/2" X 24" 74u
3M 06520, Marine Adhesive Sealant 5200FC Fast Cure, White, 295 mL Cartridge, 7000000629, 12/Case
3M 20909, PSA Cloth Disc 348D, 80 X-weight, 2 in x NH, Die 200P, 7000118873
3M 45120, Cartridge RoII Mandrel, 3/32 in x 3/4 in x 1/4 in, 7010328349
3M 49711, Particulate Respirator 8210V, N95, 7000002462, 80 EA/Case
3M 05205, Marine Adhesive Sealant 5200, Black, 3 oz Tube, 7000118402, 6/Case
3M 29827, Sanding Screen, 120 Grit, 19 in x NH, 7100160249
3M 00254, Scotch-Brite Clean and Finish Roll, 12" x 30ft, CF-RL, Talc, 7000045859
3M 22409, Roloc Disc 361F, P120 XF-weight, TR, 1-1/2 in, Die R150S, 7000045103
3M 28719, Wheel Adapter Kit 28719, 1 in x 5/8-11 Internal, 7100050705 
