3M 7100020337 Hot Melt Adhesive 3731 Pg 22 Lb

Product Description

The 3M 7100020337 is a high-temperature-resistant, fast-setting thermoplastic hot melt adhesive formulated for bonding low surface energy (LSE) substrates. Sold as 3M Scotch-Weld Hot Melt Adhesive 3731 PG, this stick-form adhesive measures 1 inch in diameter by 3 inches in length and is packaged in a 22-pound quantity. It delivers strong peel strength and maintains bond integrity in elevated-temperature environments. Contractors, fabricators, and industrial assemblers working with difficult-to-bond plastics rely on this adhesive where conventional adhesives fail to achieve adequate adhesion on LSE materials.

This adhesive is used across transportation, point-of-purchase display, signage, and packaging applications. It bonds polyethylene, polypropylene, and many other plastics that are common in industrial and commercial fabrication. Its fast-setting properties make it well suited to production-line and field assembly scenarios where quick handling strength is required. It is dispensed using compatible hot melt applicator equipment appropriate for stick-form adhesive in this size.

Key Features

• Formulated for low surface energy (LSE) substrate bonding including polyethylene and polypropylene
• High temperature resistance maintains bond integrity in heat-exposed applications
• Fast-setting thermoplastic formula reduces handling time in production and assembly workflows
• Stick form at 1 inch x 3 inches is compatible with standard hot melt dispensing equipment
• Strong peel strength performance on plastics typically difficult to bond
• Suited for transportation, display, signage, and packaging industries

Compatibility

Designed for use with compatible hot melt applicator equipment that accepts 1-inch-diameter by 3-inch-length adhesive sticks. Bonds polyethylene, polypropylene, and a range of plastics used in transportation, point-of-purchase display, sign, and packaging applications as stated by the manufacturer.

Installation Notes

This adhesive is applied using a heated hot melt dispensing gun or applicator rated for the required melt temperature — verify applicator compatibility before use. Allow the adhesive and applicator to reach the manufacturer-recommended operating temperature before dispensing. Work surfaces should be clean, dry, and free of oils or contaminants to achieve rated bond strength on LSE substrates. Follow all applicable safety guidelines for hot melt equipment, including burn hazard precautions during handling.

Technical Specifications

• Product Form: Stick, 1 inch x 3 inches
• Package Quantity: 22 pounds
• Substrate Compatibility: Polyethylene, polypropylene, and other LSE plastics
• Application Type: Hot melt dispensing equipment
• UPC: 00021200491399
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100020337