Product Name
Permabond Anaerobic HH131 with high temperature resistant, high strength threadlocker and sealant
Brief Description
Permabond HH131 is a very high temperature resistant, high strength anaerobic threadlocker and sealant. This material cures in the absence of air between tight-fitting metal parts, making it ideal for the permanent assembly of bolts, nuts, and screws.
Popular Applications & Uses
- Locking bolts, nuts, and screws that require permanent assembly.- Sealing metal pipe joints.- Retaining compounds for enhanced torque resistance over mechanical joining.- Form-in-place gasketing applications, replacing traditional gaskets.
Industries that Commonly Use It
- Aerospace/Defense- Automotive Service/Repair- Chemical Industry- Construction/ Building Services- Energy- General Manufacturing- Government & Military- Industrial Supply- Marine- Metal Fabrication- Transportation/ Specialty Vehicle
Special and Unique Features
- Very high temperature resistance, with a range from -55°C to 230°C (-65°F to 445°F).- High strength for permanent assembly.- Anaerobic curing, meaning it cures in the absence of air when confined between tight-fitting metal parts.- Vibration resistant, preventing loosening of assembled parts.- Excellent chemical resistance.- Lubricates threads for easier assembly.- DVGW approved.
Key Properties
- Chemical composition: Acrylic.- Appearance: Red.- Viscosity @ 25°C: High, typically 10,000 mPas (or 23,000 mPa.s @ 2rpm, 7,500 mPa.s @ 20rpm).- Shear Strength: 17 MPa (2500 psi).- Torque Strength (M10 Zinc plated bolts): 27 Nm breakaway, 240 Nm prevailing.- Maximum Gap Fill: 0.3 mm (0.012 inches).- Handling Strength: 15 minutes.- Working Strength: 3-6 hours.- Temperature Range: -55°C to 230°C (-65°F to 445°F).- UV fluorescence: No.
Surface Compatibility
- Primarily designed for metal parts, including both ferrous and non-ferrous metals.- Cures faster on active metals like copper and its alloys.- May have slower cure speeds on inactive or passivated surfaces such as stainless steel, zinc, and aluminum, where an activator (e.g., Permabond A905 or ASC10) may be considered.- Best performance is achieved on clean, dry, and grease-free surfaces.- Not recommended for use in contact with oxygen, oxygen-rich systems, strong oxidizing materials, or steam.- Users should check compatibility with thermoplastics as the product may adversely affect some.
Known backups / known substitutes
- Permabond A905 or ASC10 (activators to accelerate cure on inactive surfaces).- Other Permabond anaerobic threadlockers, such as A113, A130, or HM129, depending on specific requirements.- Loctite 277 is a known cross-reference for this product.- General anaerobic adhesives from manufacturers like 3M™ Scotch-Weld™, Cyberbond, or Hernon.
Comparison Note
Permabond HH131 is distinguished by its exceptional combination of very high temperature resistance and high strength, making it a premium choice for critical applications demanding permanent assembly and reliable performance in extreme thermal conditions.
