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 29836, Sanding Screen, 60 Grit, 18 in x NH, 7100160820
3M 55618, Cloth Belt 777F, P120 YF-weight, 1/8 in x 18 in, Fabri-lok, Full-flex, 7010360356, 200 per case
3M 05441, Stikit Hand Block, 2-3/4 in x 7-3/4 in, 7000045765
3M 05440, Stikit Hand Block, Hard 2-3/4 in x 5 in, 7000045764
Standard Abrasives 42623, A/O Flap Wheel 621408, 1 in x 1 in x 1/4-20 in 120, 7100053407, 10 per case
3M™ 72016, Remote Alarm & Strobe 529-05-20, Audible, 7000131708, 1 EA/Case
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
3M 86745, Diamond Disc, 2" Roloc, 674W, 120 Mesh, TR, 7100022116, Box of 10
3M 32518, Cloth Belt 341D, P120 X-weight, 9 in x 48 in, Film-lok, Single-flex, 7010307962, 20 per case
3M 45719, Cubitron II Hookit Cloth Disc 947A, 40+ X-weight, 6 in x NH, D/F 6HL, Die 600HZ, 7100113143
Dynabrade 64350 26" W x 36" L (660 mm W x 914 mm L) Metal Capture Downdraft Station, 230 V (AC)
3M 05526, Wetordry Sponge Pad 20, 5-1/2 x 2-3/4 in x 3/8 in, 7000045663
3M™ 17323, Versaflo™ Respiratory Helmet Assembly M-407, with Premium Visor and Flame Resistant Shroud, 7000002395, 1 EA/Case
3M 73555, Mix & Dispense Equipment Nozzle, TS218, 2 in x 1/8 in, 7100207912
3M™ 53797, Flexible Diamond Belt 6451J, 1/2" Dia x 18" L, M125 Micron, Type G, Pattern B2, 7010509272
3M 06839, Booth Coating, 1 Galllon, 7000028421
3M 95725, Venture Tape Metal Building Facing Tape 1552CW, White, 72 mm x 45.7 m, 7010313505
3M 33349, 641WY 1/4" X 24", 220 Mesh Diamond Cloth Belt, 7010534919
3M 30289, Trizact Hookit Finishing Foam Sheet, 5000, 2-3/4 in x 5-1/2 in, 7000120135, 15 Sheets/Carton
3M 32267, 641WY, 3" X 30", 400 Mesh, Diamond Cloth Belts, 7010534830
ACS Diamond Cloth Belt, CX1250 3/8" X 24" 75U
Dynabrade 91429 1/2" W x 12" L 80 Grit A/O DynaCut Belt, 50/pack
Standard Abrasives 42536, A/O Flap Wheel 661605, 6 in x 2 in x 1 in 60, 7010368978, 5 per case
Dynabrade 02084 Angle Housing Assembly,Steel, Rear Exhaust
3M 35790, 675L, 1" X 120", 74u, Diamond Microfinishing Film Belts, 7010509196
ACS CX1250 Diamond Belt, 1/2" X 24" 30u
3M 20903, PSA Cloth Disc 348D, P240 X-weight, 2 in x NH, Die 200P, 7000118877
3M 05741, Hookit Hand Block, 2-3/4 in x 7-3/4 in, 7000045716
3M 22970, Disc Holder Adapter 9, 5/8-11 External 3/8-24 Internal, 7000046093 
