3M
3M 3738 Hot Melt Adhesive Sticks Tan 5/8 in 2 in 50 sec
Tan hot-melt adhesive sticks bond fabric, metal, plastic and wood in 50 seconds with 375 psi shear strength
- TypeSealing Compound
- Color/FinishTan
- 50-second working time speeds assembly
- Tan 5/8 in × 2 in sticks fit standard guns
- 100 % solids — no solvents to evaporate
- Bonds fabric, metal, plastic and wood
- FDA 21 CFR 175.105 compliant for indirect food contact
General-Purpose Hot-Melt Sticks for Fabric, Metal.
3M 3738 tan adhesive sticks measure 5/8 inch in diameter and 2 inches long. They are formulated as 100-percent-solids sealing compound that bonds fabric, metal, plastic and wood in general-purpose assembly tasks.
50-Second Working Time Before Hardening Begins
Once melted, the adhesive remains workable for 50 seconds before it starts to set. This fixed open time determines whether the operator can position and clamp parts within a single heating cycle.
Viscosity of 2,875 cps at 350–385 °F
At the stated melting range the material flows at a consistent 2,875 centipoise and develops 375 psi shear strength on cooled joints. The formulation is not UV-resistant and carries no high-tack or low-odour claims, so extended outdoor exposure or odour-sensitive environments are outside its comfortable range.
Highlights
- 50-second working time speeds assembly
- Tan 5/8 in × 2 in sticks fit standard guns
- 100 % solids — no solvents to evaporate
- Bonds fabric, metal, plastic and wood
- FDA 21 CFR 175.105 compliant for indirect food contact
Specifications
| Type | Sealing Compound |
|---|---|
| Color/Finish | Tan |
| Brand | 3M |
Questions about this item
How long do I have to position parts after applying the adhesive?
The working time is 50 seconds before the adhesive begins to harden, giving a short window to align and press materials together.
What does the viscosity of 2,875 cps mean for how the adhesive flows?
Both minimum and maximum viscosity are 2,875 cps, so the melt flows consistently at the 350 to 385 °F melting temperature without thinning or thickening during application.
Will the 5/8-inch diameter sticks fit my standard glue gun?
These sticks are 5/8 inch in diameter and 2 inches long, matching the common 5/8-inch format used in many industrial and craft hot-melt applicators.
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