AN 302-72 is a high viscosity, high strength grade designed for the locking of threads and stud bolts. The higher viscosity of this anaerobic adhesive allows it to be used for locking larger gauge bolts up to M 36 or R ½”.
This is the high temperature grade of the Weiconlock Thread Locking range and offers temperature resistance up to 230ºC. This makes Weiconlock AN 302-72 perfect for applications with elevated operating temperature while the fact that it is also DVGW approved for use in gas installations only increases its flexibility.
Once a threaded connection is sealed with AN 302-72 it remains permanently locked and sealed and will be hard to disassemble.
|For Threaded Joints Up To||M 56 R 1/2″|
|Viscosity at 25ºC Brookfield||6.000 – 15.000 mPa·s|
|Gap filling capacity (max.)||0.3mm|
|Breakaway Strength (Thread)||20 – 30 Nm|
|Prevailing Strength (Thread)||40 – 75 Nm|
|Shear Strength (DIN 54452)||10 – 15 N/mm²|
|Handling Strength at Room Temp.||20 – 40 min.|
|Final Strength at Room Temp.||5 – 10 Hours|
|Temperature Resistance||-60ºC to +230ºC|
Weiconlock AN 302-72 Anaerobic Adhesive is available from your local AG in 20ml, 50ml or 200ml bottles. These special pen shaped bottle allow for easy, accurate application while the base minimises the chances of any spillage.
Generally speaking, Weiconlock AN 302-72 does not require pre-treatment of the surface as even slightly oily surfaces cab still be adhered. That being said, best results will be achieved on cleaned and degreased surfaces (Weicon Surface Cleaner is ideal for this task). If required the parts should be slightly roughened.
Weiconlock AN 302-72 is ready to use from the moment you open the bottle. It should be evenly applied direct from the bottle/tube with the dispensing tip (avoid direct contact between the dispensing tip and metal). Weiconlock AN 302-72 should be applied evenly around the thread of the screw or bolt.
Do not pour any excess Weiconlock fluid that has made contact with metal back into the bottle. Even the smallest metal particles will cause the contents of the bottle to cure once the lid is re-closed. In series construction or production line situations, the use of manual or automatic applicators is suggested. For full use instructions, please consult the TDS & SDS for this product (both of which can be provided by your local AG branch).
Additional Information and Resources
Adhesive Finder Tool
Unsure if this adhesive is suitable for your application? Try Weicon’s handy Adhesive Finder tool!