Weiconlock AN 302-72 Threadlocking Adhesive - 20ml Pen

SKU: SWM000081B01V0001
MPN: 30272020
Availability: Available for Fast Dispatch.
Container Size


All Bulk Prices Below Are Quoted Including GST.
Buy 5 - 9 and pay only $22.72 each
Buy 10 or above and pay only $21.79 each
  • Higher Viscosity for Accurate Application or Vertical Surfaces.
  • High Strength for Hard to Disassemble, Permanent Bonds.
  • DIN WVGW Approved for Gas.
  • German Hygiene Institut Approved for Potable Water.
  • High Temperature (200°C)

Weiconlock AN 302-72 Threadlocking Adhesive is a high strength, high viscosity grade designed for locking all kinds of bolts in place permanently..

This grade of anaerobic adhesive is manufactured in Germany by Weicon and offers a variety of benefits. These are expanded on in the sections below:

Hygiene Institut Approved for Potable Water.

Our Weiconlock AN 302-72 has been tested and approved by the Hygiene-Institut des Ruhrgebiets. This allows it to be used for bonding in drinking water applications.

DIN / DVGW Approved for Gas Service.

This quality adhesive has also been tested in accordance with DIN DVGW and approved for use in gas sealing application and equipment.

High Temperature Resistance.

Our Weiconlock AN 302-72 is a high temperature grade of anerobic adhesive. This glue will withstand continuous exposure to temperatures between -60°C and +200°C.

High Strength, Hard to Disassemble Joins.

Weiconlock AN 306-20 cures with high strength for permanent bonds and seals. Strength ratings are summarised further below.

Specialised tools or the application for heat (300°C) will be required to disassemble joins made with Weiconlock AN 302-72.

High Viscosity.

Weiconlock AN 302-72 has a viscosity of 6.000 - 15.000 mPa·s (according to Brookfield at 25°C). We classify this as a high viscosity which means it is more suitable for larger diameter connections and vertically aligned parts.

Weiconlock AN 302-72 is able to cover gaps up to 0.3mm and is used on threaded joints up to M 56 (R2").

Weiconlock AN 302-72 Key Specs Overview.

Colour Red
Viscosity 6.000 - 15.000 mPa·s
Maximum Gap Bridging 0.3mm
Prevailing stregth 40 - 75 Nm
Handling Strength at Room Temperature 20 - 40 Minutes
Temperature Resistance -60°C to +200°C.

For more detailed information on this high-quality adhesive, please consult the specifications tab or the Technical Data Sheet via the Media Tab.

The Weiconlock Pen System.

One of the features of all Weiconlock Threadlockers, Flange Sealants, Retaining Adhesives and Pipe Sealers is the pen system they use for most size containers (300ml varieties are supplied in cartridges and are the one exception).

This special pen makes accurate application natural and easy. It also helps to reduce wastage as there’s less chance of spillage.

The Weicon Pen System has been used in all kinds of industries all over the world for decades and continues to be a key point of difference for these German-Made adhesives.

Common Features of All Weiconlock Anaerobic Adhesives.

WEICONLOCK® are one-component anaerobic adhesives and sealants, especially made for metal assembly parts.

The full range covers over 60 different grades designed for everything from Thread Locking, Pipe Sealing, Flange Sealing and Retaining Cylindrical Assemblies like bearings. There are special grades for potable water applications, gas lines, oxygen service and more.

No matter the grade chosen, all types of Weiconlock Adhesive have a few things in common:

Excellent Chemical Resistance.

All grades of Weiconlock Adhesives are resistant to a large variety of different chemicals, fluids and gases. Some of the more common are summarised in the table below. A more comprehensive list is also available via the Media Tab..

Media Resistance   Media Resistance
Acetic acid 80% o   Oxygen
Aromat, Solvent +   Phenol +
Brake fluid +   Propane +
Diesel, heating oil +   Seawater +
Edible oil +   Silicone oil +
Fuel oil +   Turpentine +
Glycocol, glycine +   Vinegar +
Helium +   Water (acidic) under PH 7 +
Hydrochloric acid +   Water PH 7 to 8 +
Isobutane +   Water (alk.) over PH 8 +
Kerosene +   Water, chlorinated +
Mineral oil +   Water, cooked o
Naphtha, petroleum +   Water, distilled +
Natural gas - dry +   Water, wastewater (sewage) +
Nitrogen gas +   Xylene, dimethylbenzene +

+ = Good Resistance.
o = Resistant
% = Limited Resistance.
- = Not Resistant.

Easy to Use.

In general, WEICONLOCK does not require special pre-treatment as slightly oily surfaces (e.g. on as received parts) will be tolerated.

However, best results will be achieved on cleaned, degreased parts (use WEICON Surface Cleaner). If required, the parts should be slightly roughened.

WEICONLOCK is ready for use and should be applied evenly direct from the bottle/tube with the dispensing tip (avoid direct contact of dispensing tip with metal). Apply continuous bead on one side of flange, join and tighten parts quickly.

For sealing applications (pipe fitting) apply WEICONLOCK in circular motions on the thread. Screw pipe threads together and tighten until desired orientation.

Do not pour back into the bottle any WEICONLOCK fluid which had contact with metal; even smallest metal particles will cause the content of the bottle to cure. In series construction, the use of manual or automatic applicators is recommended.

Simple to Store.

WEICONLOCK can be stored in the unopened original container for at least 24 months at room temperature. Keep away from heat sources and direct sunlight. The air in the bottle/tube keeps WEICONLOCK liquid.

Colour Red
For Threaded Joints Up To... M 56 / R 2"
Viscosity 6.000 - 15.000 mPa·s
Maximum Gap Bridging 0.3mm
Breakaway strength (Thread)  20 - 30 Nm
Prevailing strength 40 - 75 Nm
Shear strength Nmm² (DIN 54452)* 10 - 15 N/mm²
Handling Strength at Room Temperature 20 - 40 Minutes
Final strength (100%) after 5 - 10 Hours
Temperature Resistance -60°C to +200°C.

*Strength values based on M 10 screws, 8.8 grade, thickness of nut 0,8.d Static shear strength based on cylindrical parts of abt. Ø 13 mm, tolerance (D-d) = 0,05 mm, l/d = 0,88 

SKU SWM000081B01
Brand Weicon

Do I need to do anything to prepare the surfaces?

Sort of. Weiconlock AN 302-72 will work on slightly dirty or oily threads but for best results it is suggested that these be cleaned before you apply the adhesive. Weicon Surface Cleaner is a great option for this.

How long does it take to cure?

About 5-10 hours at room temperature for full cure. The large range quoted here is a reflection of two things; the difference in what room temperature can mean and the fact that Weiconlock AN 302-72 will take slightly longer to cure on some surfaces than others.