This single-component adhesive is specifically designed for bonding cylindrical fitting parts, particularly those with narrow bond gaps up to 0.25mm (0.01 inches). It offers rapid curing on all metals, including passive substrates such as stainless steel. For a high-strength retaining compound suitable for all metals, including passive substrates, consider using Loctite 638. This product delivers excellent high-temperature performance and good oil tolerance, with a fixture time of just four minutes and a gap-filling capability ranging from 0.15mm to 0.25mm (0.006 inches - 0.01 inches). It can also withstand minor surface contaminants, including industrial oils. With its high viscosity, it is ideal for use with shafts, gears, pulleys and similar cylindrical components and is also suitable for high-strength threadlocking and thread sealing applications. The operating temperature range is -55 deg C to 180 deg C (-65 deg F - 355 deg F). Loctite 638 complies with the performance requirements of KIWA Gastec QA AR 214 for admixtures up to and including 100% hydrogen gas on metal threaded fittings, with certifications available in select countries.

Suitable for shafts, gears, pulleys and other similar cylindrical components
Exhibits high-strength adhesion on all metals, including passive substrates such as stainless steel
Resistance to high temperatures
Fluorescent inspection under ultraviolet light for quality control
Certified by Kiwa Gastec QA AR 214 for hydrogen gas systems

Report incorrect product description

Reviews

Q & A

Retail Stock

Compliance

Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).