Product Name
Permabond MH052 Anaerobic Durable Seal Sealing of Threaded
Brief Description
Permabond MH052 is an anaerobic thread sealant specifically formulated for sealing threaded joints. It cures in the absence of air and in contact with metal surfaces, creating a durable, vibration-proof seal. This product effectively prevents leaks of gas, water, LPG, hydrocarbons, oils, and various other chemicals. A key feature is its approval for use in gaseous oxygen systems.
Popular Applications & Uses
- Sealing threaded joints in pipework- Gas and water supply systems- Gaseous oxygen systems, including those in hospitals, breathing apparatus, and aircraft- Fire protection and sprinkler systems- Pneumatic and hydraulic systems- Sealing against LPG, hydrocarbons, and oils- Securing calibration spindles on flow regulators and flow meters
Industries that Commonly Use It
- Aerospace/Defense- Automotive Service/Repair- Chemical Industry- Construction/ Building Services- Energy- General Manufacturing- Medical Device/ Prosthetics- Metal Fabrication- Petroleum Industry, Products or Services- Pool/Spa/Plumbing- Transportation/ Specialty Vehicle
Special and Unique Features
- Approved for use with gaseous oxygen up to 10 bar and 60°C, featuring a unique formulation stable in oxygen-rich environments- Does not shred, creep, or dry out, ensuring a durable and long-lasting seal- Forms a pressure seal to the burst rating of the pipe- Contains no loose particles that could clog valves- Offers excellent chemical resistance- Provides vibration-proof sealing- WRAS listed for contact with wholesome (potable) water- Holds DVGW and BAM approvals- Lubricates to ease assembly of threaded components- Helps prevent corrosion within the joint
Key Properties
- Product Type: Anaerobic adhesive/sealant- Curing Mechanism: Cures in the absence of air and in contact with metal surfaces- Sealing Capability: Seals against gas, water, LPG, hydrocarbons, oils, and other chemicals- Maximum Gap Fill: 0.5 mm- Maximum Thread Size: M80 3"- Torque Strength (M10 steel ISO10964): Break 20 N·m, Prevail 11 N·m- Shear Strength (steel collar & pin ISO10123): 10 MPa- Temperature Resistance: -55°C to 150°C (withstands higher temperatures for short periods)- Handling Time (at 23°C): 10-30 minutes (varies with surface activity)- Full Cure Time (typical at 23°C): 24 hours- Color: Yellow
Surface Compatibility
- Achieves best results on clean, dry, and grease-free metal surfaces- Tolerates a slight degree of surface contamination- Roughened surfaces (~25µm) generally yield higher bond strengths- Cures more quickly on active metal surfaces such as copper and its alloys- Exhibits slower cure on inactive or passivated surfaces like zinc, aluminum, and stainless steel; cure speed can be accelerated with Permabond A905 or ASC10 activator- Not recommended for use on plastic pipes- Not recommended for contact with steam, strong oxidizing materials, and very polar solvents
Known backups / known substitutes
- PTFE tape (Teflon tape)- Hemp- Pipe dope (pipe joint compound, thread paste)- Other anaerobic thread sealants (e.g., Loctite 545, Loxeal 58-11)
Comparison Note
Permabond MH052 offers significant performance advantages over traditional thread sealing methods such as PTFE tape and pipe dope. Unlike tape or hemp, MH052 will not shred, creep, or dry out, ensuring a consistently durable and long-lasting seal. It cures to form a solid, vibration-resistant bond that seals to the burst rating of the pipe, effectively preventing leaks often caused by vibration, changing pressures, or temperature fluctuations. Furthermore, its particle-free formulation eliminates the risk of clogging valves, a common issue associated with tape-based solutions. Its unique approval for gaseous oxygen applications also positions it as a superior choice for specialized and critical systems.
Search Tags
Permabond MH052, anaerobic sealant, thread sealant, pipe sealant, durable seal, threaded joints, gas seal, water seal, oxygen systems, LPG, hydrocarbons, oils, chemical resistance, vibration resistant, non-shredding, non-drying, non-cracking, plumbing, hydraulics, pneumatics, fire protection, sprinkler systems, medical oxygen, aircraft oxygen, metal sealing, industrial sealant, adhesive, threadlocker, pipe dope alternative, PTFE tape alternative.
