3M
3M 3731 Hot Melt Adhesive Kit Tan 5/8 in 8 in 30 sec 165 PK
Hot melt adhesive kit with 165 tan sticks, 5/8 inch diameter, 8 inch length, 30 second working time and 24 hour full cure
- TypeSealing Compound
- Hot melt adhesive bonds polyolefin plastics
- 30-second working time speeds assembly tasks
- 265 °F melting temperature suits standard glue guns
- 550 psi shear strength delivers durable joints
- 165 Quadrack sticks provide extended project supply
3M 3731 Hot Melt Adhesive Kit
The 3M 3731 kit supplies 165 tan quadrack sticks measuring 5/8 in diameter by 8 in length for bonding polyolefin-based plastics. It is intended for assembly and repair tasks that require a heat-resistant, solvent-free adhesive with a shear strength of 550 psi.
30-second working time and quadrack format
Sticks load into compatible hot-melt applicators and begin to harden in 30 seconds at a melting temperature of 265 degrees F. The short working window demands quick alignment; the consistent 12,000 cps viscosity reduces stringing but offers no repositioning time once the adhesive sets.
24-hour full cure for sustained bonds
After the initial 30-second set, the adhesive reaches full cure in 24 hours, delivering the rated 550 psi shear strength for continuous load bearing. The formulation is electrically non-insulating and not UV resistant, so prolonged outdoor or electrical exposure should be avoided.
Highlights
- Hot melt adhesive bonds polyolefin plastics
- 30-second working time speeds assembly tasks
- 265 °F melting temperature suits standard glue guns
- 550 psi shear strength delivers durable joints
- 165 Quadrack sticks provide extended project supply
Specifications
| Type | Sealing Compound |
|---|---|
| Brand | 3M |
Questions about this item
How can I verify the adhesive is bonding correctly after the 30 sec working time?
The adhesive begins to harden after 30 seconds and reaches full cure in 24 hours, achieving 550 psi shear strength on polyolefin-based plastics.
What does the 165 PK kit contain and is a glue gun sold separately?
The kit includes 165 quadrack-format tan sticks measuring 5/8 in diameter by 8 in length; an applicator gun is not included and must be purchased separately.
Which stick dimensions and melt temperature suit my 3M 3731 applicator?
Use the 5/8 in diameter by 8 in long quadrack sticks that melt at 265 °F; these are the exact specifications for the 3731 series.
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