Weiconlock AN 301-43 Thread Locking Adhesive - 50ml Pen

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  • Special grade of thread locker approved by NSF for sealing drinking (potable) water systems.
  • DVGW approved for gas sealing applications.
  • Non-marking, blue thread locker that cures with medium strength and allows disassembly with normal tools.

Weiconlock AN 301-43 is a high-quality grade of thread locker designed for critical applications. This thread locker has been approved by NSF (per NSF/ANSI standard 61) for use in drinking water applications and has also been DIN DVGW approved for use in sealing gas lines and fittings. These approvals allow this thread locker to be used in a variety of applications in the food, beverage, cosmetic, medical and pharmaceutical industries.

Weiconlock AN 301-42 is a medium strength thread locking adhesive. This means the connections sealed and bonded with this grade will be able to be disassembled with normal tools when it is required. It also has a relatively high viscosity (thicker) which allows it to be accurately applied to small gauge threads, bolts and fittings without running.

This blue thread locker can withstand temperatures up to 150°C and can cover bonding gaps up to 0.25mm. It can be used on threads up to M 36 in diameter and will achieve handling strength after around 5-15 minutes at room temperature. Like the vast, vast majority of Weiconlock grades, AN 301-43 is supplied using Weicon’s special pen system which makes accurate application simple and easy.

AN 301-43 is part of the Weiconlock White Line of anaerobic adhesives. These have been specially developed to meet the stringent requirements of highly regulated industries. 


What do I have to do to prepare the surfaces?

Clean and dry as much as possible. Weiconlock grades will work on slightly oily surfaces but adhesion will be improved on parts that have been cleaned and degreased.

How long does it take to dry?

About 1-3 hours at room temperature for complete curing. Handling strength (usually around 35% of the final strength) will be achieved much faster; about 5-15 minutes at room temperature.

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 301-43 will take slightly longer to cure on some surfaces than others. 

Colour Blue
Application Area Thread Locking and Sealing
For Threaded Joints Up To... M 36 Ø
Viscosity at 20°C Brookfield 2,000 - 8,000 MPa
Maximum Gap Filling Capacity 0.25mm
Breakaway Strength (Thread) 18 - 22 Nm
Prevailing Strength (Thread) 9-11 Nm
Shear Strength (DIN 54452) 10/13 N/mm²
Handling Strength (at room temperature) 5-15 Minutes
Final Strength (at room temperature) 1-3 Hours
Temperature Resistance -60°C to +150°C
Approvals and Certifications NSF / ANSI Approved for Potable Water (Standard 61)
DVGW Approved for Gas Sealing Applications

For more technical data (including a full chemical compatability chart and use instructions) we really do suggest having a look at the Technical Data Sheet and Safety Data Sheet for this high quality thread locker.

SKU SWP000149
Model # 30143200
Brand Weicon

Weiconlock AN 301-43 Thread Locking Adhesive TDS

Weiconlock AN 301-43 Thread Locking Adhesive TDS

Weiconlock AN 301-43 Thread Locking Adhesive SDS

Weiconlock AN 301-43 Thread Locking Adhesive SDS

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