Open Bond Time Allows for Fit Adjustment and Positioning
3M™ Hot Melt Adhesive 3738 features a 50 second open time that allows for positioning and adjustment on wood, polypropylene, corrugated boxes and lightweight substrates. Its nearly instant bonding property reduces production time for POP assembly, joining, attaching, securing, repairing, potting, panel bonding, wire tacking, bundling, sealing, encapsulating, rigidizing, foam bonding, and packaging. For use with a 3M™ Hot Melt Applicator.
Recommended Applications
- Cabinetry
- Woodworking
- Sound damping
- Furniture manufacturing
- Upholstery
- POP displays
- General industrial
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 250ºF/121ºC temperatures, which makes them ideal for bonding electronics, plastics, cloth and other heat sensitive materials. High temperature hot melt adhesives are applied at 380ºF/193ºC 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 93561 3" Dia. x 1/4"-20 Female Center Thread, 180 Grit, A/O, 3-Ply, J-DynaCut Eyelet Star, 50/pack
Dynabrade 59391 Housing for Model # X61VHS
Dynabrade 78388 4-1/2" Dia. x 7/8" Center Hole, Type 29, 80 Grit, A/O DynaCut Flap Disc, 10/pack
Dynabrade 54980 Back-Up Flange- Type 27
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
Dynabrade 78118 3/4" W x 20-1/2" L Very Fine NWN DynaBrite Belt, 10/pack
Dynabrade 90461 1/2" W x 24" L Coarse NWN DynaBrite Premium Belts, 10/pack
Dynabrade 13504 Dynastraight Finishing Tool, 1 HP, Rear Exhaust, 3,400 RPM, 5/8"-11 Threaded Arbor
Dynabrade 91246 8" Dia. x 220 Grit A/O Vacuum PSA DynaCut Disc, 25/Box
Dynabrade 69452 Drop-In Motor
Dynabrade 48500 2" Dia. 7 Degree Offset Disc Sander, Rear Exhaust, .4 HP, 25,000 RPM
Dynabrade 96418 Bearing Press Tool
Dynabrade 15025 Contact Arm Assembly, 3/8" Dia. x 1" W, 40 Durometer
Dynabrade 78739 5/16" x 5/8"- B53 DynaFire A/O Vitrified Mounted Point, 5/pack
Dynabrade 52716 Cone or Plug Wheel Grinder, 15,000 RPM, 3/8"-24 Male Thread Spindle
Dynabrade 58506 3-7/8" W x 5-5/8" L Dynabug II Orbital Sander, Central Vacuum, .15 HP, 10,000 RPM, 3/32" Orbit 
