Permabond MH052 – Thread Sealant for Gaseous Oxygen Systems

Permabond MH052 is a single-component anaerobic thread sealant for metal pipe and threaded connections. Its unique formulation has BAM approval for use with gaseous oxygen up to 10 bar and 60°C. Typical applications include hospital oxygen pipelines, breathing apparatus, aircraft oxygen systems and other technically demanding oxygen installations.

MH052 is also approved for natural gas and LPG at working pressures up to 20 bar and carries DVGW and WRAS approvals for gas and potable-water applications. It seals reliably against water, LPG, hydrocarbons, oils and many other chemicals.

The sealant cures in the absence of air between metal surfaces, creating a durable, vibration-resistant seal. Unlike PTFE tape or hemp, it does not shred or dry out. Its particle-free formulation prevents loose material from entering and blocking valves or pipelines.

MH052 is suitable for threads up to M56 or 2 inches and fills gaps up to 0.5 mm. At 23°C, handling strength is typically reached after approximately 15 minutes and working strength after 1–3 hours. Once cured, joints can be dismantled using standard tools for maintenance, repairs or system modifications.

Key benefits:

• BAM approved for gaseous oxygen up to 10 bar and 60°C
• DVGW and WRAS approvals
• Suitable for natural gas and LPG up to 20 bar
• Excellent chemical resistance
• Durable, vibration-resistant sealing
• No loose particles that could block valves
• Easy disassembly with standard tools