Provides Extreme Temperature Stability 300F / 149C for a Durable Bond
3Mâ„¢ 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 3Mâ„¢ 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, 3Mâ„¢ 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 06536, Scotch Steel Gray Masking Paper, 06536, 36 in x 1000 ft, 1 per case, 7000045443
3M 45715, Cubitron II Hookit Cloth Disc 947A, 40+ X-weight, 5 in x NH, D/F 5HL, Die 500FH, 7100113110
ACS Diamond Grinding Disc, 4-1/2" Dia. X 5/8"-11 Center Hub Thread, Type 29, 36 Grit
3M 06518, Scotch Steel Gray Masking Paper, 06518, 18 in x 1000 ft, 2 per case, 7000045441
3M 00705, Interam Stainless Steel Foil Tape T-65, 4 in x 100 ft, 7100024280
Dynabrade 62346 Interface Ring
Dynabrade 78424 4-1/2" Dia. x 3/8" Medium DynaBrite Surface Conditioning Disc, 25/pack
3M 80759, Flap Wheel 747D, T83, 2 in x 1 in x 1/4 in, 80 X-weight, 7000000444, 10 per case
Dynabrade 02084 Angle Housing Assembly,Steel, Rear Exhaust
3M 11419, Roloc Disc 361F, P240 XF-weight, TR, 2 in, Die R200P, 7000045105
3M 45720, Cubitron II Hookit Cloth Disc 947A, 60+ X-weight, 6 in x NH, D/F 6HL, Die 600HZ, 7100113076
3M 26130, PPS Series 2.0 Adapter, Type S35, 16 mm Female, 1.5 mm
Thread Stretched, 7100135926
Standard Abrasives 709187, A/O Straight Cartridge Roll, 1/2 in x 1-1/2 in x 1/8 in 60, 7100085869
Norton 66261096557 - 3" X 1/2" Blaze Rapid Strip Ceramic Alumina Extra Coarse Grade Non- Woven Abrasive Disc With Quick Change TR III Attachment, 25 Each
3M 45699, Cubitron II Hookit Cloth Disc 947A, 40+ X-weight, 3 in x NH, Die 300V, 7100113114
3M 35083, EMI Copper Foil Shielding Tape 1181, 1/4 in x 18 yd (6,35 mm x 16,5 m), 7000132168
3M 26583, Accuspray Refill Pack for PPS Series 2.0, Green, 1.3 mm, 7100152953
Dynabrade 78423 4-1/2" Dia. x 3/8" Very Fine DynaBrite Surface Conditioning Disc, 25/pack
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
3M 12952, Scotch-Brite Roloc Surface Conditioning Disc, SC-DR, A/O Very Fine, TR, 4 in, 7100007032, 100 per case
ACS Flap Disc, Type 29 (Curved) Full Diamond 4-1/2 X 5/8-11 60M, 333.FD4.5-60/T29
Air Turbine Tools 310RSV - 6mm Router Hand Tool Series, 40,000RPM, 33441
3M 28126, Hookit Clean Sanding Disc 900DZ, 5 in 80 J-weight, Die 500LG, 7010290258
Standard Abrasives 42735, A/O Flap Wheel 661408, 6 in x 1 in x 1 in 120, 7010369146
3M 83330, Cubitron II Fibre Disc 982CX Pro, 36+, 4 in x 5/8 in, Die 400FF, 7100242928
Standard Abrasives 715081, A/O Straight Cartridge Roll, 5/8 in x 2 in x 3/16 in 60, 7100102991 
