Film VK-3, VK-3A

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Film VK-3 is a phenol-rubber film adhesive made from an alcohol solution of phenol-formaldehyde varnish FL-5111 and a rubber mixture solution based on synthetic and natural rubber in solvent (product 4). Film VK-3A is a phenol-rubber film adhesive made from an alcohol solution of phenol-formaldehyde varnish FL-5111 and a rubber mixture solution based on synthetic rubber in solvent (product 4A).

Category: Film Adhesives

Purpose: Industry

Purpose: Aerospace industry

Purpose: Space engineering

Technical Specifications
Main purpose and application

Technical Specifications

Film adhesive is supplied in rolls. The thickness, width, and length of the film in a roll correspond to those indicated in the table.

1. Appearance:
Gray or light brown
2. Mass fraction of volatiles, %, not less than: 6–13
3. Shear strength, MPa (kgf/cm²), not less than:
  • at 20°C: 14.7 (150)
  • at 80°C: 9.8 (100)
4. Peel strength at 20°C, N/cm (kgf/cm), not less than: 392 (40)

Main purpose and application

VK-3, VK-3A films are designed for bonding metals and non-metallic materials. They replace welding and riveting in aircraft, helicopter construction, and other industries.
Aviation and space:
  • Bonding helicopter blades, aircraft skin.
  • Replacing rivets in load-bearing structures.
Industry:
  • Mounting brake pads, guides in textile manufacturing.
  • Bonding honeycomb fillers.