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 96101 Dynabrade Air Lube 10W/NR 24 Per Box
Insize SFT-S210R-U, SALT SPRAY TESTER, 6974029771514
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
3M 82596, Hot Melt Adhesive 3762 AE, Tan, 0.45 in x 12 in, 7100023019, 11 LBS/Case
3M 82239, Scotch-Weld Epoxy Adhesive 420, Off-White, Part A, 5 Gallon Drum (Pail), 7100001144
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Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC)
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
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Dynabrade 40320 Dynafile II Abrasive Belt Tool
Dynabrade 14000 Dynafile Abrasive Belt Tool
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3M™ 72122, Portable Compressed Air Filter and Regulator Panel 256-02-01, 100 cfm, 8 outlets, with Carbon Monoxide Monitor, 7000052147, 1 EA/Case
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3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 62604, Scotch-Weld Threadlocker TL42, Blue, 1 mL Pipette, 7100064043, 100/case
3M 01328, PSA Cloth Disc 348D, P180 X-weight, 3 in x NH, Die 300V, 7000045068
Dynabrade 11399 Type 27 Wheel Mounting Adapter Kit
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
ACS Diamond Cloth Belt, CX1250 1" X 42" 200U
Dynabrade 51622 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 35,000 RPM, 3mm Collet
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Dynabrade 15420 Dynafile III Abrasive Belt Tool
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
3M 05442, Stikit Soft Hand Block, 2-3/4 x 5 in, 7000045435
3M™ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
3M 80835, Flexible Diamond Hand File 6210J, No 2, Yellow, 18, N40, 7000082160, 10 Per Case
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3M 45715, Cubitron II Hookit Cloth Disc 947A, 40+ X-weight, 5 in x NH, D/F 5HL, Die 500FH, 7100113110
Dynabrade 51708 .1 hp Straight-Line Pencil Grinder, 35,000 RPM, 3/32" Collet
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
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3M 17093, Versaflo Hood Assembly with Inner Collar and Premium Head Suspension S-655, 7000002347, 1 EA/Case
3M 33780, 641WY 1/4" X 24", 400 Mesh Diamond Cloth Belt, 7010534915
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
Dynabrade 50288 4-1/2" Dia. Disc Backup Pad, Hard Density, 5/8"-11 Thread
3M 62715, Scotch-Weld Stainless Steel High Temperature Pipe Sealant PS67, White, 250 mL Tube, 7100039215, 2/case
3M 13449, Scotch-Brite Metal Finishing Wheel, MF-WL, 5A Coarse, 12 in x 2 in x 5 in, 7010364521
Dynabrade 51301 .5 hp Straight-Line Die Grinder
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3M 26103, PPS Series 2.0 Adapter, Type S19, 3/8 Female, 19 Thread BSP, 7100135928
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3M 01032, Scotch-Brite Clean and Strip Unitized Wheel, CS-UW, 7S Extra Coarse, 6 in x 1 in x 5/8 in, 7000120867 
