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PERMABOND A118

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Anaerobic threadlocker, high strength, highest torques

High-strength universal bonding — highest torques in the Permabond A series (33/58 N·m).

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  • Brand
  • Container
  • Color
  • Country of origin
  • Chemical group
  • Viscosity (adhesives)
  • Viscosity mPa.s
  • Fluorescence
  • Maximum gap fill (mm)
  • Handling strength (M10 steel)@23°C
  • Functional strength (M10 steel)@23°C
  • Ultimate strength (M10 steel)@23°C
  • Shear strength (steel ISO10123)
  • Coefficient of thermal expansion
  • Dielectric Strength
  • Thermal conductivity
  • Storage Temperature (°C)
  • Operating temperature (°C)

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high strength WRAS PERMABOND

 
General Terms and Conditions

Shipping usually within 1 to 3 business days
(Availability confirmed after order)

Express logistics. Fast and reliable within Switzerland & Europe

From Swiss stock Dispatch within 24h Batch certificate Invoice 30 days (B2B) Technical advice
Shipping & Delivery

Usually 1 to 3 business days

Availability is confirmed after order receipt.

Express logistics within Switzerland & Europe.

Terms and Conditions →

Product data

HS Code: 3506.9190000

HS Code: 3506.9190000

PERMABOND A118
PERMABOND A118
Permabond · Permabond Engineering Adhesives Ltd ·

Permabond A118 is a high-strength anaerobic universal adhesive — designed for permanent bonding and sealing of metal parts such as bearings, gears, screws and other threaded connections with the highest torque requirements.

With a viscosity of 400 mPa·s, A118 is medium-viscosity and fills gaps up to 0.12 mm. Its high shear strength of 21 MPa and enormous torques (33 N·m breakaway, 58 N·m further) qualify the product for the most demanding anaerobic bonding applications.

The WRAS approval also permits direct contact with drinking water — a rare combination for high-strength adhesives. Excellent chemical resistance, vibration resistance, and corrosion resistance make A118 the universal choice for permanent machine and plant assembly.

SPECIAL FEATURE

Highest torques in the Permabond A series — 33 N·m breakaway torque, 58 N·m holding torque and 21 MPa shear strength. The universal choice for permanent, high-stress bonding of bearings, gears and bolted connections.

Permabond A118 in figures
33 N·m
Breakaway Torque
58 N·m
Prevailing torque
21 MPa
Shear strength
WRAS
Drinking water

What distinguishes Permabond A118

Highest torque in the A-series
33 N·m breakaway strength / 58 N·m further strength — no other Permabond A adhesive achieves these values.
21 MPa shear strength
High-strength shear and tensile loads — permanent machine assembly.
Universal application
Bearings, gears, screw connections — one solution for multiple bonding types.
WRAS approved for potable water
Direct contact with drinking water permitted.
Vibration and corrosion resistant
Secures connections under dynamic and chemical stress.
UV fluorescence
Curing can be checked using UV light.

What is Permabond A118 used for?

Bearing assembly
Bonding of rolling and sliding bearings in shafts and housings.
Gear and shaft-hub connections
Continuous, high-stress torque transmission.
High-strength threadlocker
If classic threadlockers were too weak.
Potable water systems
High-strength bonding with WRAS approval.
Industrial permanent assembly
Mechanical and plant engineering, permanent bonding.

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 ones.
2
Apply adhesive
Apply Permabond A118 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 tip to metal surfaces (this will cause premature hardening in the bottle).
3
Joining components
Insert the screws and tighten to the desired torque. For shaft-hub fits, assemble the components before the adhesive begins to cure.
4
Allow to cure
Anaerobic curing begins in the absence of air and upon 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)
On inactive surfaces (stainless steel, zinc, aluminum) or at low temperatures, Permabond A905 activator can be used — apply to one bonding surface, allow to flash off, then apply adhesive to the other side.
Data Sheets & Safety Data Sheet
Complete 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.
To the product →
Permabond A 905 Spray
Aerosol version of the A905 activator — convenient application in hard-to-reach areas or large surfaces.
To the product →
Permabond Cleaner A Aerosol
Spray cleaner for rapid degreasing and preparation of bonding surfaces before applying the anaerobic adhesive.
To the product →
Permabond A118 High Strength Universal
High-strength all-purpose bonding — the universal choice for demanding screw, bearing, and shaft-hub connections.
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Important Notes

Not suitable for / Important notes
Heating the connection is recommended for disassembly. Not for contact with oxygen or steam. Some thermoplastics may be damaged.
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, and do not pour adhesive back into the bottle.

Which Permabond anaerobic adhesive for which application?

Permabond A118 in direct comparison with related products of the A series.

Permabond A118
Current Product		Permabond A134 →Permabond A025 →Permabond HH131 →
Application / StrengthHigh-strength universal threadlockerPaste-like, gap 0.5 mmHigh temperature, WRASDVGW Gas + KTW Drinking Water, M56
Viscosity400 mPa·sPaste750 mPa·sPaste
Max. gap fill.0.12 mm0.5 mm0.2 mm0.3 mm
Breakaway Torque33 N·m30 N·m13 N·m7 N·m
Prevailing torque58 N·m50 N·m23 N·m54 N·m
Topics & Application Fields
Key terms related to this product. Also useful for our search and filters.
high strength WRAS PERMABOND

Technical data for PERMABOND A118

All 19 product information 4 Performance at final strength 3 Physical properties 5 Curing values ​​4 Thermal properties 3
Product Information
Manufacturer Permabond Engineering Adhesives Ltd
Brand Permabond
Container 50 ml, 200 ml
Country of origin Italy
Performance at Full Cure
Shear strength (steel ISO10123) 21 MPa
Dielectric Strength 11 kV/mm
Thermal conductivity 0.19 W/(m.K)
Physical Properties
Color green
Chemical group Acrylic one-component
Viscosity (adhesives) Low viscosity <500 MPas
Viscosity mPa.s 400
Fluorescence Yes
Curing values
Maximum gap fill (mm) 0.12
Handling strength (M10 steel)@23°C 15 minutes
Functional strength (M10 steel)@23°C 1 hour
Ultimate strength (M10 steel)@23°C 24 hours
Thermal Properties
Coefficient of thermal expansion 90 x 10-6 mm/mm/°C
Storage Temperature (°C) 5-25
Operating temperature (°C) -55 to 150

Please refer to the technical data sheet (TDS) in the "Documents" tab for binding values.

Documents and data sheets

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

Technical Data Sheets (TDS) 3
Permabond A118 - Technical Data Sheet DE.pdf
328 KB
Permabond A118 - Technical Data Sheet EN.pdf
332 KB
Permabond A118 - Technical Data Sheet FR.pdf
299 KB
Safety Data Sheets (SDS) 3
Permabond A118 - Safety Data Sheet DE.pdf
370 KB
Permabond A118 - Safety Data Sheet EN.pdf
348 KB
Permabond A118 - Fiche de Sécurité FR.pdf
369 KB

Frequently asked questions about Permabond A118

Practical application and design questions — answered by SILITECH.

Permabond A118 is a single-component, anaerobic acrylic adhesive with a viscosity of 400 mPa·s and a gap-filling capacity of up to 0.12 mm. It is a high-strength, universal threadlocker offering the highest torque ratings in the Permabond A series. Anaerobic adhesives cure in the absence of air and in contact with metal, making them ideal for tight-tolerance metallic joints.

Anaerobic adhesives like Permabond A118 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 A118 is high-strength (33 N·m breakaway torque). Disassembly typically requires heating the bond to 200 °C or more. Designed for permanent bonding.

Permabond A118 is approved according to WRAS drinking water regulations . These certifications qualify the product for the specified applications — such as direct contact with drinking water in the case of WRAS and KTW approvals.

Permabond A118 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 A118 is a high-strength universal threadlocker (400 mPa·s viscosity, 0.12 mm gap filling, 33 N·m breakaway torque). Permabond A134 is a high-strength paste (paste, 0.5 mm gap filling, 30 N·m breakaway torque). Both belong to the anaerobic Permabond A series.

The choice depends on the application: Permabond A118 (high-strength universal threadlocker); Permabond A134 (high-strength paste); Permabond A025 (high-temperature high-strength); Permabond HH131 (high-temperature + gas/drinking water). For inactive surfaces (stainless steel, zinc, aluminum), Permabond A905 activator be used to accelerate curing.

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Product Specifications

Product Information
Container 50 ml or 200 ml
Manufacturer Permabond Engineering Adhesives Ltd
Brand Permabond
Country of origin Italy
Performance at Full Cure
Shear strength (steel ISO10123) 21 MPa
Dielectric Strength 11 kV/mm
Thermal conductivity 0.19 W/(m.K)
Physical Properties
Color green
Chemical group Acrylic one-component
Viscosity (adhesives) Low viscosity <500 MPas
Viscosity mPa.s 400
Fluorescence Yes
Curing values
Maximum gap fill (mm) 0.12
Handling strength (M10 steel)@23°C 15 minutes
Functional strength (M10 steel)@23°C 1 hour
Ultimate strength (M10 steel)@23°C 24 hours
Thermal Properties
Coefficient of thermal expansion 90 x 10-6 mm/mm/°C
Storage Temperature (°C) 5-25
Operating temperature (°C) -55 to 150
Keywords
Keywords
high strength WRAS PERMABOND

Documents and data sheets

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