Adhesive VK-9

1. Appearance:
Homogeneous mass of viscous-flowing consistency without foreign inclusions or clumps.
2. Pot life, h, not less than:

• at a temperature from 0ºC to 5ºC – 30
• at a temperature from 15ºC to 20ºC – 2.5
• at a temperature from 21ºC to 25ºC – 2.0
• at a temperature from 26ºC to 27ºC – 1.5
• at a temperature from 28ºC to 35ºC – 1.0

3. Shear strength of adhesive joints of D16AT alloy, anodized in chromic acid or cleaned (sanded) or sandblasted, MPa (kgf/cm²), not less than:
at (23±2) ºC – 13.7 (140)
at (80±2) ºC – 5.4 (55)
at (125±5) ºC – 4.4 (45)

VK-9 adhesive is designed for bonding adhesive, adhesive-welded, and adhesive-threaded joints made of aluminum and titanium alloys, steels, and composite materials in structures operating in the temperature range from -60°C to +125°C continuously, at +200°C for 500 h, and at +250°C for 5 h.
VK-9 adhesive combined with VK-25 adhesive as a primer is recommended for bonding aluminum and titanium alloys, steels in riveted-adhesive and layered structures operating from -60°C to +80°C continuously. VK-25 adhesive is used as a flexible primer.
Aerospace industry:
- Bonding of thermal protection shields, strain gauges (used in the “Buran” orbital shuttle).
- Bonding honeycomb panels made of fiberglass and ceramics.
Radio engineering and electronics:
- Sealing microwave modules, insulating components.
- Bonding lead parts to aluminum cable sheaths.
Mechanical engineering:
- Fixing cutting tools (taps, reamers).
- Repair of automotive brake systems.
Shipbuilding:
- Creation of moisture protection barriers resistant to seawater.