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PERMABOND HH 131

PERMABOND HH 131

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Anaerobic threadlocker, high strength, highest torques

Permabond HH131 — High-strength, high-temperature resistant threadlocker (paste).

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  • brand
  • Manufacturer
  • Country of origin
  • Container
  • Torsional strength (M10 steel ISO10964) Breakaway strength
  • Torsional strength (M10 steel ISO10964) Further
  • Chemical group
  • Specific gravity
  • Viscosity (adhesives)
  • fluorescence
  • Maximum gap width (mm)
  • DVGW gas approval
  • KTW-BWGL Drinking Water
  • Hardness (Shore D)
  • Storage temperature (°C)
  • Color

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anaerobic adhesives PERMABOND

 
General Terms and Conditions.

Shipping usually within 1 to 3 business days
(availability will be confirmed after ordering)

. Express logistics. Fast and reliable within Switzerland & Europe.

Shipping from Swiss warehouse within 24 hours. Batch certificate. Invoice within 30 days (B2B). Technical support.
Shipping & Delivery

Usually 1 to 3 working days

Availability will be confirmed after order receipt.

Express logistics within Switzerland & Europe.

General Terms and Conditions →

Product data

Internal reference: 49-203.FL.G200

Internal reference: 49-203.FL.G200

PERMABOND HH 131
PERMABOND HH 131
Permabond · Permabond Engineering Adhesives Ltd · SKU 49-203.FL.G200

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.

AUTHORIZATION & SPECIAL PROPERTIES

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.

Permabond HH131 in figures
27 N·m
Breakaway torque
M56
max. thread
DVGW+KTW
Gas + Drinking water
High temperature
Up to 200 °C

What distinguishes Permabond HH131

DVGW Gas + KTW Drinking Water
Dual certification for gas and water installations — a rare combination.
Threads up to M56
Exceptional reach — even large industrial threads can be securely joined.
High temperature resistant
Retains strength at higher temperatures than standard threadlockers.
pasty consistency
Does not drip from vertical threads — apply precisely.
High Feast
27 N·m breakaway strength, 54 N·m further — permanent bonding.
Excellent chemical resistance
Tolerant of solvents, oils and many industrial media.

What is Permabond HH131 used for?

Gas installations
DVGW-approved — screw connections in gas pipes and fittings.
Drinking water installation
KTW-BWGL approved — pumps, distributors, large screw connections.
Large threads
Up to M56 — plant engineering, heavy industry, apparatus engineering.
Hot machine components
High temperature resistance for motors, pumps, and industrial furnaces.
Permanent bonding with special approval
Gas and drinking water systems that require high-strength protection.

processing

1
Clean surfaces
Bonding surfaces must be clean, dry, and free of grease. Degrease with Permabond Cleaner A or a solvent (acetone, isopropanol). Rough surfaces (~25 µm) result in higher bond strength than polished surfaces.
2
Apply adhesive
Apply Permabond HH131 directly from the bottle — for through holes, apply a stripe along the thread length; for blind holes, apply a few drops to the bottom. Do not touch the nozzle to metal surfaces (this will cause premature hardening in the bottle).
3
Joining components
Insert the screws and tighten them to the required torque. For shaft-hub fits, assemble the components before the adhesive begins to cure.
4
Allow to harden
Anaerobic curing begins in the absence of air and in contact with metal. Handling strength is typically achieved after 15 minutes, functional strength after 1 hour, and full strength after 24 hours at 23 °C.
5
Accelerate curing (optional)
Permabond A905 activator can be used on inactive surfaces (stainless steel, zinc, aluminum) or at low temperatures — applied to one adhesive surface, allowed to evaporate, then adhesive applied to the other side.
Data sheets & safety data sheet
Full TDS and SDS in DE, EN, FR — view or download directly.
To the documents →

Recommended accessories

Permabond A905 Activator
Accelerates anaerobic curing on inactive surfaces such as stainless steel, zinc or aluminum and improves gap curing.
View product →
Permabond A 905 Spray
Aerosol version of the A905 activator — convenient application in inaccessible places or large areas.
View product →
Permabond Cleaner A Aerosol
Spray cleaner for quick degreasing and preparation of the bonding surfaces before applying the anaerobic adhesive.
View product →
Permabond A118 High Strength Universal
High-strength all-round bonding — the universal choice for demanding screw, bearing and shaft-hub connections.
View product →

Important instructions

Not suitable for / Important notes
Disassembly typically requires heating the joint. Not for oxygen service. Some thermoplastics may be affected.
storage
Store at 5 to 25 °C. Anaerobic adhesives lose their reactivity upon contact with metal — do not touch the tip of the bottle to metal surfaces, do not pour the adhesive back into the bottle.

Which Permabond anaerobic adhesive is suitable 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 / StrengthHigh-strength, high-temperature resistant threadlocker (paste)Standard high-strength A-seriesLow viscosity, A-seriesWRAS, low viscosity
viscosity22,500 mPa s @ 2 rpm / 7,000 mPa s @ 20 rpm (thixotropic)paste400 mPa·s750 mPa·s
Maximum gap filling.0.3 mm0.5 mm0.12 mm0.2 mm
Breakaway torque27 N·m30 N·m33 N·m13 N·m
Further torque54 N·m50 N·m58 N·m23 N·m
Topics & Application Areas
Key terms related to this product. Also useful for our search and filters.
anaerobic adhesives PERMABOND

Technical data for PERMABOND HH 131

All 16 product information 4 Performance at final strength 2 Physical properties 4 Curing values ​​1 Product approvals 2 Mechanical properties 1 Thermal properties 1 General 1
Product information
brand Permabond
Manufacturer Permabond Engineering Adhesives Ltd
Country of origin Italy
Container 200 ml
Performance at final strength
Torsional strength (M10 steel ISO10964) Breakaway strength 27 N·m
Torsional strength (M10 steel ISO10964) Further 54 N·m
Physical properties
Chemical group Acrylic
Specific gravity 1,1
Viscosity (adhesives) High viscosity / paste
fluorescence Yes
Curing values
Maximum gap width (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
Generally
Color red

For binding values, please refer to the technical data sheet (TDS) in the "Documents" tab.

Documents and datasheets

Click on a document for a preview or the download icon for a direct download.

Technical Data Sheets (TDS) 3
Permabond HH 131 - Technical Data Sheet DE.pdf
357 KB
Permabond HH 131 - Technical Data Sheet EN.pdf
377 KB
Permabond HH 131 - Technical Data Sheet FR.pdf
332 KB
Safety Data Sheets (SDS) 3
Permabond HH 131 - Safety Data Sheet DE.pdf
364 KB
Permabond HH 131 - Safety Data Sheet EN.pdf
342 KB
Permabond HH 131 - Fiche de Sécurité FR.pdf
346 KB

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.

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Product specifications

Product information
brand Permabond
Manufacturer Permabond Engineering Adhesives Ltd
Country of origin Italy
Container 200 ml
Performance at final strength
Torsional strength (M10 steel ISO10964) Breakaway strength 27 N·m
Torsional strength (M10 steel ISO10964) Further 54 N·m
Physical properties
Chemical group Acrylic
Specific gravity 1,1
Viscosity (adhesives) High viscosity / paste
fluorescence Yes
Curing values
Maximum gap width (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
Uncategorized
Color red
Keywords
Keywords
anaerobic adhesives PERMABOND

Documents and datasheets

Safety Data Sheets (SDS) and Technical Data Sheets (TDS) are available for download: