Silicones, silicone oils, sprays
Casting and potting resins
Internal reference:
49-203.FL.ML200
Technical Data
Typical values, not a specification. The technical data sheet (TDS) is binding.
Product Information
- Brand
- Permabond
- Manufacturer
- Permabond Engineering Adhesives Ltd
- Country of origin
- Italy
- Container
- 200 ml
Performance at Full Cure
- Torque strength (M10 steel ISO10964) Breakloose
- 27 N·m
- Torque strength (M10 steel ISO10964) Prevailing
- 54 N·m
Physical Properties
- Chemical group
- Acrylic
- Specific Gravity
- 1,1
- Viscosity (adhesives)
- High-viscosity / Paste
- Fluorescence
- Yes
Curing values
- Maximum gap fill (mm)
- 0,3
Product Approvals
- DVGW gas approval
- Yes
- KTW-BWGL Drinking Water
- Yes
Mechanical properties
- Hardness (Shore D)
- 70
Thermal Properties
- Storage Temperature (°C)
- 5-25
Features
- Color
- red
Product Description
Permabond HH131 is a high-strength, high-temperature resistant anaerobic threadlocker with DVGW gas and KTW-BWGL drinking water approval — designed for large threads up to M56 and the highest requirements in gas and water installations.
With its thixotropic paste consistency (22,500 mPa·s at 2 rpm), HH131 does not drip from vertical threads and fills gaps up to 0.3 mm. Its thread range up to M56 (2 inches) is exceptional—most threadlockers are limited to M20 or M30.
The unique combination of DVGW gas approval and KTW-BWGL drinking water approval qualifies HH131 for gas and water installations—a dual certification possessed by only a few anaerobic adhesives. Its high-temperature resistance and high strength (27 N·m breakaway strength, 54 N·m extension, 17 MPa shear strength) make it the premium choice for industrial installations.
DVGW gas approval + KTW-BWGL drinking water approval — the unique dual certification for gas and drinking water pipes. A pasty, high-strength threadlocker up to M56 threads, high-temperature resistant — Permabond HH131 is the premium choice for demanding plumbing and gas installations.
What distinguishes Permabond HH131
What is Permabond HH131 used for?
Processing
Recommended accessories
Important Notes
Which Permabond anaerobic adhesive for which application?
Permabond HH131 in direct comparison with related products of the A series.
Permabond HH131 Current Product | Permabond A134 → | Permabond A118 → | Permabond A025 → | |
|---|---|---|---|---|
| Application / Strength | High-strength, high-temperature resistant threadlocker (paste) | Standard high-strength A-series | Low viscosity, A-series | WRAS, low viscosity |
| Viscosity | 22,500 mPa s @ 2 rpm / 7,000 mPa s @ 20 rpm (thixotropic) | Paste | 400 mPa·s | 750 mPa·s |
| Max. gap fill. | 0.3 mm | 0.5 mm | 0.12 mm | 0.2 mm |
| Breakaway Torque | 27 N·m | 30 N·m | 33 N·m | 13 N·m |
| Prevailing torque | 54 N·m | 50 N·m | 58 N·m | 23 N·m |
Frequently asked questions about Permabond HH131
Practical application and design questions — answered by SILITECH.
Permabond HH131 is an anaerobic acrylic adhesive with a viscosity of 22,500 mPa·s @ 2 rpm / 7,000 mPa·s @ 20 rpm (thixotropic) and gap filling up to 0.3 mm. It is a high-strength, high-temperature resistant threadlocker with DVGW gas and KTW drinking water approval — for threads up to M56. Anaerobic adhesives cure in the absence of air and in contact with metal — ideal for tight tolerance metallic joints.
Anaerobic adhesives like Permabond HH131 remain liquid in the bottle (due to contact with air and oxygen) and only begin to harden after bonding under anaerobic conditions and metal-to-metal contact. Curing starts at the metal surface and progresses into the bond gap. The product cures quickly on steel and copper; on stainless steel and zinc, the Permabond A905 activator may be beneficial.
Difficult to remove — Permabond HH131 is high-strength (27 N·m breakaway torque). Disassembly typically requires heating the bond to 200 °C or more. Designed for permanent bonding.
Permabond HH131 is approved according to DVGW gas approval and KTW-BWGL drinking water approval . These certifications qualify the product for the respective specified applications—such as direct contact with drinking water in the case of WRAS and KTW approvals.
Permabond HH131 typically reaches handling strength after 15 minutes and functional strength after 1 hour at 23 °C on M10 steel. Final strength is reached after 24 hours. On inactive surfaces (stainless steel, zinc) or at low temperatures, the curing time is extended—Permabond A905 activator accelerates the process.
Permabond HH131 is a high-strength, high-temperature threadlocker (paste) (22,500 mPa·s @ 2 rpm / 7,000 mPa·s @ 20 rpm (thixotropic) viscosity, 0.3 mm gap filling, 27 N·m breakaway torque). Permabond A134 is a high-strength paste (paste, 0.5 mm, 30 N·m breakaway torque) — standard high-strength A-series. Both belong to the anaerobic Permabond A-series.
The choice depends on the application: Permabond HH131 (high-strength, high-temperature resistant threadlocker paste); Permabond A134 (high-strength paste); Permabond A118 (high-strength universal threadlocker); Permabond A025 (high-temperature high-strength threadlocker). For inactive surfaces (stainless steel, zinc, aluminum), Permabond A905 activator be used to accelerate curing.