Adhesion Promoter for Foam Tape-3M 94 Premier 3MK520 3M 4298 Equivalent

Professional adhesion promoter primer designed to boost bonding strength on low-surface-energy substrates, ensuring secure, long-lasting adhesion for tapes, glues, foam tapes and industrial adhesives in harsh conditions.

Equivalent for 3M 94 premier, 3MK520 and 3M 4298.

Adhesion promoters—also known as primers—are pale yellow, transparent liquids designed to enhance bonding performance. Applied to a substrate prior to adhesive application, they react with atmospheric moisture to generate high bond strength, offering excellent resistance to cold, humidity, and high temperatures. They yield particularly outstanding bonding results when used in conjunction with acrylic foam tapes, paints, or adhesives.
Specifically, they significantly improve the adhesion of tapes, glues, and coatings to challenging-to-bond substrates—including EPDM, TPU, PP, PE, PET, BOPP, smooth electroplated parts, metals, glass, and various other plastics.

Features:

  • Enhances bonding strength between difficult substrates such as plastics, rubbers, metals, and low-surface-energy materials
  • Improves adhesion of tapes, glues, coatings, and sealants to smooth, oily, or non-porous surfaces
  • Increases peel strength, shear resistance, and long-term bonding durability
  • Excellent primer for double‑sided tapes, foam tapes, acrylic adhesives, and liquid electrical tape
  • Enhances resistance to moisture, humidity, high temperature, and aging

 

Applications:

Applications include soundproofing and sealing strips for various automotive doors, windows, elevators, air conditioners, and furniture; as well as door sill plates, rain visors, door handles, door handle bowls, decorative trim strips, anti-collision strips, rearview mirror covers, and rearview mirror rain guards.

 

Precautions:

The adhesion promoter is a chemically active substance; therefore, for each application, extract only the amount required for the day (8 hours), and keep the remainder tightly sealed. The work environment should be well-ventilated and kept clean. Store in a cool, ventilated area at a temperature between 5°C and 35°C.

 


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