3M 7000000878 Hot Melt Adhesive 3748-Q Off-white 11 Lb

Product Description

The 3M 7000000878 is the Scotch-Weld Hot Melt Adhesive 3748-Q, a general-purpose thermoplastic adhesive supplied in 5/8-inch diameter by 8-inch glue sticks with a minimum order quantity of 11 pounds. It comes in an off-white color and is applied using compatible hot melt dispensing equipment. The 3748-Q formula offers good thermal and electrical properties, making it suitable for assemblies where performance under heat cycling or electrical exposure is a factor. It is non-corrosive to copper, which is a relevant characteristic for HVAC and electrical trade applications involving copper components or wiring.

This adhesive is designed for general-purpose bonding across a wide range of substrates, including polyolefins, which are often difficult to bond with standard adhesives. Typical applications include bonding insulation, wire management components, ductwork accessories, and light-duty structural assemblies in residential and light commercial settings. Trades that commonly use hot melt adhesives in their workflow include HVAC technicians, electricians, and plumbers working with insulation or panel components.

Key Features

• General-purpose hot melt formula bonds to a wide range of substrates including polyolefins
• Non-corrosive to copper — safe for use in HVAC and electrical assemblies with copper components
• Good thermal and electrical properties for performance in trade-related applications
• Off-white color for low-visibility bonding lines
• 5/8-inch diameter sticks for use with standard compatible hot melt dispensing equipment
• Sold in 11-pound quantity for jobsite and shop use

Compatibility

Designed for use with compatible hot melt adhesive dispensing equipment that accepts 5/8-inch diameter glue sticks. Bonds to various substrates including polyolefins and other common construction and trade materials.

Installation Notes

This adhesive is applied using hot melt dispensing equipment — verify your applicator accepts 5/8-inch diameter sticks before use. Allow the applied adhesive to fully cool and set before placing mechanical load on the bond. Keep heat sources and open flame away from stored adhesive sticks. Follow the manufacturer applicator guide for recommended dispensing temperatures and equipment settings.

Technical Specifications

• Form Factor: Glue stick, 5/8 inches diameter x 8 inches length
• Color: Off-White
• Quantity: 11 pounds
• Unit Weight: 1.08 pounds per unit
• UPC: 00021200763748

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000000878