3M 7100086557 Scotch-weld Epoxy Adhesive 100 Clear Part a 5 Gal

Product Description

The 3M 7100086557 is the Part A (Accelerator) component of the Scotch-Weld Epoxy Adhesive 100 system, a rigid, fast-setting, two-part epoxy designed for structural bonding, filleting, and potting applications. It cures at room temperature with a 1:1 mix ratio, offers a 3 to 5 minute work life, and develops handling strength in approximately 20 minutes. The low-viscosity formula pours easily, making it practical for filling cavities and encapsulating components. This SKU supplies the Part A side only and must be paired with the corresponding Part B component to complete the system. Licensed trade professionals and industrial maintenance technicians are the primary users of this product.

This adhesive is suited for bonding metals, ceramics, wood, and many plastics in both production and maintenance-repair settings. Its fast cure cycle makes it a practical choice for situations where minimizing downtime is critical. The filleting and potting capabilities make it useful in electrical enclosure work, structural assembly, and component mounting. It meets UL-94 HB flammability classification, which supports use in applications where ignition resistance of the cured adhesive is a consideration. The 5-gallon container size is appropriate for higher-volume production or service operations.

Key Features

• Part A (Accelerator) of a 1:1 mix ratio two-part epoxy system
• 3 to 5 minute work life with handling strength in approximately 20 minutes at room temperature
• Low viscosity for easy pouring, filleting, and potting
• Bonds metals, ceramics, wood, and many plastics
• Meets UL-94 HB flammability classification
• Rigid cure provides structural-grade bond strength

Compatibility

Designed for use as the Part A component in the 3M Scotch-Weld Epoxy Adhesive 100 two-part system. Requires the corresponding Part B component to cure. Bonds a variety of substrates including metals, ceramics, wood, and many plastics.

Installation Notes

This product is handled by maintenance technicians, production assemblers, and trade professionals working with structural adhesive systems. Before dispensing, ensure surfaces are clean, dry, and free of oils or contaminants. Mix Part A and Part B at a 1:1 ratio by volume and apply within the 3 to 5 minute work life window. Do not apply heat to accelerate cure unless confirmed safe for the substrate and surrounding materials, and always consult the full product safety data sheet before use.

Technical Specifications

• Mix Ratio: 1:1 (Part A to Part B)
• Work Life: 3 to 5 minutes
• Handling Strength Development: Approximately 20 minutes at room temperature
• Cure Type: Room temperature curing, two-part epoxy
• Viscosity: Low viscosity
• Color: Clear
• Container Size: 5 gallon
• Flammability Rating: UL-94 HB
• Weight: 10.54 pounds
• UPC: 00021200823459

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100086557