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.

Dynabrade 14360 Pneumatic Pipe Belt Finisher
Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC)
Dynabrade 40378 Rubber Drive Wheel, Mini Dynafile II
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
Dynabrade 14000 Dynafile Abrasive Belt Tool
Dynabrade 18426 Vane Set (4pk)
Dynabrade 11231 Contact Arm Ass'y, 3/4" Dia. x 1/2" W, Rubber Wheel, with 1/2" W Platen
Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 54972 Vane Set (5pk)
Dynabrade 57113 Rotor/Vane Set
Dynabrade 52474 Vane Set (4pk)
Dynabrade 01185 Vane Set (4pk)
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
Dynabrade 54705 Rotor/Vane Set
Dynabrade 11005 Dynafile Belt Housing Guard
Dynabrade 95848 Dynabrade Gear Oil
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Dynabrade 96101 Dynabrade Air Lube 10W/NR 24 Per Box
3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101
Dynabrade 11399 Type 27 Wheel Mounting Adapter Kit
3M 14343, Marine Adhesive Sealant 4000 UV, Black, 600 mL Sausage Pack, 7010309931, 12/Case
Dynabrade 11395 Guide Wheel
Dynabrade 15420 Dynafile III Abrasive Belt Tool
3M 50258, Roloc Disc 777F, 60 YF-weight, TSM, 3 in, Die RS300VM, 7010325551
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
3M 14559, Roloc Disc 361F, P150 XF-weight, TR, 2 in, Die R200P, 7000119021
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
Dynabrade 40610 Electric Dynafile II Abrasive Belt Tool
3M 28120, Hookit Clean Sanding Disc 900DZ, 5 in 60 J-weight, Die 500LG, 7010326613
Dynabrade 51301 .5 hp Straight-Line Die Grinder
Dynabrade 95544 Gear Grease, 2.5oz. Tube
3M 20910, PSA Cloth Disc 348D, 60 X-weight, 2 in x NH, Die 200P, 7000118872
3M 08024, Adhesive Sealant 740 UV, Black, 290 mL Cartridge, 7100115542, 12 per case
Standard Abrasives 37446, PSA A/O Disc, 700595, 1-1/2 in x NH, 60, 7010331822
Standard Abrasives 840031, Quick Change Surface Conditioning FE Disc, A/O Coarse, TSM, Brown, 3/4 in, QS75KM, 7000046845, 50/case
Dynabrade 64404 36" W x 60" L (914 mm W x 1,524 mm L) Metal Capture Downdraft Table, 230 V (AC), Side Exhaust
ACS CX1250 Diamond Belt, 1/2" X 24" 30u
3M 87179, Scotch-Weld Epoxy Adhesive 2216NS, Tan, Part B, 5 Gallon Drum (Pail), 7010309882
3M 03601, Plastic Emblem and Trim Adhesive, 1 fl oz, 7010294867, 12 per case
3M 07926, Floor Surfacing Discs, 7 in x 7/8 in, 30 Grit, 7010401392
3M 35790, 675L, 1" X 120", 74u, Diamond Microfinishing Film Belts, 7010509196 
