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.

Standard Abrasives 725011, Buff and Blend Cross Buff HP, A/O VFN, 3/4 in x 3/8 in x 2 Ply x 8-32, 7000047134
3M 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
3M 45707, Cubitron II Hookit Cloth Disc 947A, 40+ X-weight, 6 in x NH, Die 600Z, 7100113121
Dynabrade 52439 3" (76 mm) Dia. Right Angle Diamond Cut-Off Wheel Tool
3M™ 72122, Portable Compressed Air Filter and Regulator Panel 256-02-01, 100 cfm, 8 outlets, with Carbon Monoxide Monitor, 7000052147, 1 EA/Case
3M 09099, Scotch-Brite Paint and Rust Stripper Large Area 9099NA, 7010375230
3M 06520, Marine Adhesive Sealant 5200FC Fast Cure, White, 295 mL Cartridge, 7000000629, 12/Case
3M 95412, Lead Foil Tape 420, Dark Silver, 3/4 in x 36 yd, 6.8 mil, 7000029006
3M 20911, PSA Cloth Disc 348D, 50 X-weight, 2 in x NH, Die 200P, 7000118871
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 22407, Roloc Disc 361F, 80 YF-weight, TR, 1-1/2 in, Die R150S, 7000045099
3M 26109, PPS Series 2.0 Adapter, Type S23, 1/4 Female, 18 Thread NPS, 7100135941
Dynabrade 53245 7" Dia. Type 27 Vertical Depressed Center Wheel Grinder, 3 HP, 8,500 RPM, 5/8"-11 Spindle
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
Dynabrade 14360 Pneumatic Pipe Belt Finisher
3M 99633, Scotch-Weld Pressure Fit/High Temperature Retaining Compound RT48, Green, 250 mL Bottle, 7100170130, 2/case
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
3M 23354, Home Dust Mask, 8661P4-DC, 7100159312, 4 Each/Pack
3M™ 07010, Supplied Air Respirator Hose W-9435-25/07010(AAD), 25 ft, 3/8 in ID, Industrial Interchange Fittings, High Pressure, 7000005374, 1 EA/Case
3M 62818, Adhesive Sealant 760 UV, Black, 600 mL Sausage Pack, 7000121496, 12/Case
3M 54305, Particulate Respirator 8110S, N95, 7000052065, 160 EA/Case
Standard Abrasives 722809, PSA A/O Extra Disc, 5 in x NH, 60, 7010368721
3M 33443, Cubitron II File Belt, 36+, 1/2 in x 18 in (12.7 mm x 457.2 mm), 7100033184, 10 belts per carton, 5 cartons per case
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
3M 19791, Nexcare Earloop Mask IP-310, 7010332465, 3 Per Pack
3M 45714, Cubitron II Hookit Cloth Disc 947A, 120+ X-weight, 3 in x NH, D/F 3HL, Die 300BE, 7100113113
3M 25138, Scotch-Weld Threadlocker TL43, Blue, 10 mL Bottle, 7100039219, 10/case
3M™ 72013, Adapter 529-04-50, 110-120 VAC, 7000131705, 1 EA/Case
3M 36856, Dirt Trap Clear Film 18 in x 100 ft, 7000028295
3M 45038, Wheel Adapter Kit No.3, 5/8-11 External, 7000028423
3M 62610, Scotch-Weld Threadlocker TL62, Red, 50 mL Bottle, 7100039196, 10/case
3M 10116, Synthetic Steel Wool Pads, 10116NA, #2 Medium, 2 in x 4 in, 7000047708
3M 31663, Cubitron II Net Disc 80+/180+/320+, includes 6 in discs and sheets, Job Pack, 7100251881, 100 Packs/Case
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
Dynabrade 95843 Dynabrade Air Lube 10W/NR, 1 Gallon
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M 65033, Scotch-Brite Diamond Wheel, 645DC 6 in x 1/2 in x 1 in, 7010365574, Box of 3
3M 45709, Cubitron II Hookit Cloth Disc 947A, 80+ X-weight, 6 in x NH, Die 600Z, 7100113080
3M 53914, Performance Plus Duct Tape 8979N Nuclear Red, 48 mm x 54.8 m 12.1 mil, 7000049014, 24/ case
Dynabrade 91425 1/4" W x 12" L 60 Grit A/O DynaCut Belt, 50/pack
3M 05206, Marine Adhesive Sealant 5200, White, 1 oz Tube, 7010325697, 12/Case
3M 51033, Roloc Disc 361F, 36 YF-weight, TSM, 3 in, Die RS300VM, 7000148150
3M 76751, Roloc Disc 777F, 60 YF-weight, TS, 3 in, Die RS300V, 7010363900
Standard Abrasives 713218, A/O Straight Cartridge Roll, 5/8 in x 1-1/2 in x 1/8 in 60, 7100102807 
