How does an anaerobic adhesive work?
Anaerobic adhesives are single-component products that cure in suitable confined metal joints when air is excluded. Their actual performance depends on the formulation, substrate, gap and curing conditions. They are supplied ready for application without mixing two components.
What types are available?
Different formulations are intended for different tasks:
- Locking threaded fasteners.
- Sealing suitable threaded pipe connections.
- Retaining bearings or bushes.
- Securing cylindrical fitted joints.
Products also differ in strength:
- Low strength.
- Medium strength.
- High strength.
Choose strength with future maintenance in mind. Do not assume one threadlocker is also approved for every sealing or retaining application.
How do you select the right product?
Check these factors:
- The metals and surface condition.
- The joint gap.
- The required disassembly characteristics.
- Temperature, load and chemical exposure.
Confirm the selection against the equipment and current product documentation.
What matters during application?
Follow the product-specific procedure:
- Clean and prepare the metal as specified. Use an activator only where required or permitted for the product and substrate.
- Apply the specified amount to the joint.
- Distinguish initial setting from full cure; the timing must come from the particular technical data sheet.
- Avoid contamination and incomplete coverage, and check the joint before putting it into service.
Surface preparation, joint geometry and curing conditions all affect the result.
When can anaerobic products replace other locking methods?
Where the joint design permits, relevant benefits may include:
- Resistance to vibration-related loosening.
- Sealing within the documented medium and pressure limits.
- Reduced need for separate locking components in a suitable design.
- Service performance within specified temperature, chemical and lifetime conditions.
These benefits do not establish universal superiority or permission to remove required mechanical locking devices.
How can they support maintenance?
An appropriate threadlocker can help manage loosening and maintenance requirements. The outcome depends on product selection, assembly and operating conditions; no indefinite durability or fault-prevention guarantee is implied.
Explore the ENYRUN bonding and sealing catalogue and describe your application when requesting advice.