3M 7000028575 Epoxy Potting Compound 270 Clear Part a

Product Description

The 3M 7000028575 is the Part A Accelerator component of the Scotch-Weld Epoxy Potting Compound 270, a rigid two-part epoxy system formulated for potting, sealing, and encapsulation of electrical components. Mixed at a 1:1 ratio with its corresponding Part B, this clear compound delivers a 70-minute working life, giving technicians adequate time for thorough application before cure sets in. Handling strength is achieved in approximately 3 hours. This SKU ships as a 5-gallon unit and weighs 9.29 pounds. Electrical and electronics professionals use it where a durable, rigid encapsulant is required to protect sensitive assemblies from moisture, vibration, and contamination.

This compound is suited for industrial and commercial electrical applications where components such as transformers, sensors, circuit boards, and connectors require full encapsulation or void-free sealing. Its controlled work life and relatively fast handling strength make it practical for production and field service environments alike. The compound cures to a clear, rigid finish, allowing visual inspection of potted assemblies where enclosure design permits. It is intended for use only as the Part A side and must be paired with the corresponding Part B to achieve the stated performance properties.

Key Features

• 1:1 mix ratio simplifies metering and reduces mix errors
• 70-minute working life allows thorough application before gel
• Handling strength reached in approximately 3 hours
• Rigid cure provides structural support for potted components
• Clear formulation enables post-cure visual inspection
• Designed for potting, sealing, and encapsulation of electrical assemblies

Compatibility

Designed for use as the Part A Accelerator in the two-part Scotch-Weld Epoxy Potting Compound 270 B/A system. Must be used with the corresponding Part B component to achieve rated performance. Not intended as a standalone product.

Installation Notes

Dispensing and potting should be performed by qualified electrical or electronics technicians following applicable workplace safety and electrical codes. De-energize and fully discharge all components before potting. Ensure the Part A and Part B components are thoroughly combined at the specified 1:1 ratio before application, as improper mixing will result in incomplete cure. Work in a well-ventilated area and consult the product safety data sheet for handling and PPE requirements.

Technical Specifications

• Mix Ratio: 1:1 (Part A to Part B)
• Working Life: 70 minutes
• Handling Strength: Approximately 3 hours
• Cure Type: Rigid
• Color: Clear
• Container Size: 5 gallons
• Weight: 9.29 pounds
• UPC: 00021200822513

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000028575