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 29902, Sanding Screen, 150 Grit, 12 in x 18 in, 7100160763
3M™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case
3M 29848, Sanding Screen, 180 Grit, 15 in x NH, 7100160815
Dynabrade 51333 .7 hp Router, 4" Base, Central Vacuum, 20,000 RPM, 1/4 Collet
3M 29822, Sanding Screen, 120 Grit, 20 in x NH, 7100160250
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
3M 10112, Heavy Duty Stripping Pads, 3 3/4 in x 6 in x 7/16 in, 7010290303
Standard Abrasives 843932, Quick Change Surface Conditioning FE Disc, A/O Medium, TSM, Maroon, 7 in x 5/8"-11, 7010330326, 10/case
Standard Abrasives 726070, A/O C2 Straight Precision Cartridge Roll, 5/8 in x 2-1/2 in x 1/4 in 60, 7100098797
ACS Diamond Cloth Belt, CX1250 1/4" X 24" 75U
Dynabrade 98265 3/8" Female Coupler with 3/8" Male Plug Assembly
ACS CX1250 Diamond Belts, 1/2" X 24" 200u
3M 76975, Microfinishing PSA Film Disc 268L, 30 Mic, Type D, Green, 5 in x NH, Die 500X, 7000118196, 500 per case
Air Turbine Tools 310RSV - 6mm Router Hand Tool Series with Brake, 30,000RPM, 33435
3M 26582, Accuspray Refill Pack for PPS Series 2.0, Blue, 1.2 mm, 7100152952
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 05516, Polyurethane Glass Adhesive Sealant 590, Black, 310 mL Cartridge, 7100060280, 12/Case
3M 62610, Scotch-Weld Threadlocker TL62, Red, 50 mL Bottle, 7100039196, 10/case
Dynabrade 58041 11" Dia. Two-Hand Gear-Driven Sander, Central Vacuum, .45 HP, 900 RPM, Hook-Face Pad
3M 26135, PPS Series 2.0 Adapter, Type S40, Trapezoidal Thread, 7100135335
Standard Abrasives 863110, A/O Unitized Wheel, 631, 2 in x 1/4 in x 1/4 in, 7000144629
Dynabrade 51629 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 1/8" Collet
3M 08302, Ultrapro Autobody Sealant, Clear, 5 oz Tube, 7000120449, 6 per case
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
3M 76790, Roloc Disc 361F, 60 YF-weight, TS, 2 in, Die RS200P, 7010300088
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 29821, Sanding Screen, 150 Grit, 20 in x NH, 7100160254
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
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 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
Dynabrade 25234 Vane Set (4pk)
Dynabrade 14360 Pneumatic Pipe Belt Finisher
3M 35827, Hookit Dust Extraction Flexible Sanding Block, 273 mm x 67 mm, 7100256623
3M 76751, Roloc Disc 777F, 60 YF-weight, TS, 3 in, Die RS300V, 7010363900
Norton 66261199696 - 3" X 1/4" X 1/4" Vortex Rapid Blend Unified Wheel, 7AM U2305, 40 Each
3M 15938 Scotch-Brite Surface Conditioning Low Stretch Belt, SC-BL, A/O Medium, 1-1/2 in x 60 in, 7010300824
Standard Abrasives 530205, A/O Resin Fiber Disc, 7 in x 7/8 in 60, 7010310605
3M 20272, Neoprene Contact Adhesive 10, Light Yellow, 1 Quart Can, 7100011456, 12/case
3M 50728, Hookit Purple+ Curved Adapter Set Multi Hole, 70 mm x 127 mm, 7000032209
Dynabrade 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust
3M 05477, Cubitron II Cloth Belt 981F, 1/2 x 18 in, 40+, YF-weight, Fabri-lok, 7100163425, 200 per case
3M 36876, Self-Stick Liquid Protection Fabric, Blue, 4 in x 300 ft perroll, 7100169348, 6 Rolls Per Pack
3M 76783, Cubitron II Hookit Cloth Disc 784F, 120+ XF-weight, 5 in x NH, Die 500X, 7100222757
3M 29831, Sanding Screen, 180 Grit, 18 in x NH, 7100160238
Dynabrade 78111 2" Dia. x 50 Grit Premium Ceramic Non-Vacuum DynaCut Locking-Type Disc, 25/pack
Norton 66261043421 - 2" Dia. Disc, 120 Grit, Blaze, 2 Ply, Flex W/ Quick-Change, 25 Each
Standard Abrasives 714175, A/O Straight Cartridge Roll, 5/8 in x 1-1/2 in x 1/8 in 80, 7100103032 
