Royal Adhesives WS-8072 B2 Corrosion Inhibitive Sealant MIL-PRF-81733 TYII Class 1 Grade B / AMS-3265 / SS8629

WS-8072 B2 is a non-chromate, corrosion-inhibitive, lightweight, fast-curing polysulfide sealant specifically formulated for aerospace applications. It is designed for filleting and faying surface sealing of aircraft structures, effectively preventing corrosion caused by water intrusion and interaction between dissimilar metals.

Key Features and Benefits

• Corrosion Resistance: Provides a robust barrier against corrosion, safeguarding aircraft components.
• Fuel and Oil Resistance: Maintains performance when exposed to aviation fuels and oils.
• Temperature Resilience: Operates effectively across a wide temperature range, withstanding intermittent exposure up to 360°F (182°C).
• Lightweight Composition: Formulated to be lightweight, contributing to overall weight savings in aircraft applications.
• Fast Curing: Cures rapidly, enhancing productivity during maintenance and manufacturing processes.
• Environmental Compliance: Free from chromates, aligning with eco-friendly and safety standards.

Technical Specifications

• Mixing Ratio: 100:10 by weight.
• Application Life: 2 hours at 77°F (25°C).
• Tack-Free Time: Less than 7 hours.
• Cure Time: 48 hours at 77°F (25°C).
• Shelf Life: 9 months when stored below 80°F (27°C) in original unopened containers.

Specifications:

• MIL-PRF-81733 Type II Class B
  
• Interchangeable with
  
  • 3M : AC-730,AC-735 B1/2
  • PPG: PR-1775 B2
  • Flamemaster: CS5500 B1/2