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 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
3M 20908, PSA Cloth Disc 348D, P100 X-weight, 2 in x NH, Die 200P, 7000118874
3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101
3M™ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
3M 08916 Scotch-Brite Surface Conditioning Belt, SC-BS, A/O Medium, 2 in x 60 in, 7010309628
3M™ 07011, Supplied Air Respirator Hose W-9435-50/07011(AAD), 7000005373, 1 EA/Case
3M 27551, EMI Copper Foil Shielding Tape 1181, 1/2 in x 18 yd (12.70 mm x 16.5m), 7000132182
Standard Abrasives 724277, Buff and Blend Circle Buff GP, A/O Very Fine, 2 in x 2 Ply x 8-32, 7010368699
3M 71361, 641WY 1/4" X 24", 1200 Mesh Diamond Cloth Belt, 7010534916
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168
3M 62612, Scotch-Weld Threadlocker TL71, Red, 10 mL Bottle, 7100039197, 10/case
3M 35828, Hookit Dust Extraction Flexible Sanding Block, 406 mm x 67 mm, 7100256624
Air Turbine Tools 310RSV - 1/4" Router Hand Tool Series, 40,000RPM, 33440
Norton 66261013403 - 3" X 1/2" Extra Coarse Grade Silicon Carbide Bear-Tex Rapid Strip TR Stripping Disc, 10 Each
Dynabrade 95544 Gear Grease, 2.5oz. Tube
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
3M 20930, PSA Cloth Disc 348D, P120 X-weight, 1 in x NH, Die 100N, 7000118916
3M 49056, Polyurethane Adhesive Sealant 560, White, 310 mL Cartridge, 7000000945, 12/case
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
Standard Abrasives 715081, A/O Straight Cartridge Roll, 5/8 in x 2 in x 3/16 in 60, 7100102991 
