Loctite Threadlocker - 50ml - VC901
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Product Information
Full details
This 50ml bottle of Loctite 243 Threadlocker (VC901) is designed for users who need a reliable adhesive for securing threaded metal assemblies and preventing loosening due to vibration. Its key benefit is providing medium-strength locking that can be disassembled with standard tools. A potential caveat is that it requires proper surface preparation for optimal adhesion.
All features
| Model Part Number | VC901 |
|---|---|
| Brand | Loctite |
Extended Product Information
FAQs
What is Loctite 243 threadlocker used for?
It is used to lock and seal threaded fasteners to prevent loosening due to vibration and to seal against leakage.
Is Loctite 243 permanent?
No, Loctite 243 is a medium-strength threadlocker that can be disassembled with standard hand tools.
How long does it take to cure?
Fixture time is typically 10-20 minutes at room temperature (22°C). Full cure can take up to 24 hours.
Can I use this on plastic parts?
It is primarily designed for metal threads. Compatibility with plastics should be tested, as it may degrade some plastics.
What is the operating temperature range?
The service temperature range is typically -55°C to +180°C (-65°F to +356°F).
How should I store the 50ml bottle?
Store in its original container in a cool, dry place, away from direct sunlight, with the cap tightly closed.
What does 'thixotropic viscosity' mean?
It means the liquid is thin when stirred or under stress but thickens at rest. This prevents it from running away from the threads before it cures.
Troubleshooting
Threadlocker does not cure or cures slowly
Ensure surfaces are properly cleaned and free of oil or contaminants. Check ambient temperature; curing is slower at low temperatures. For inactive metals, a primer might be needed.
Loosening occurs despite application
Verify that the correct strength of threadlocker was used for the application. Ensure sufficient product was applied to all engaged threads and that adequate curing time was allowed.
Difficulty in disassembling a part
Apply localized heat (up to 200°C) to the assembly and then attempt disassembly with appropriate tools. Ensure standard tools are being used.
Pros and Cons
Pros
- Effectively prevents vibrational loosening of threaded parts.
- Suitable for a wide range of metal applications.
- Allows for disassembly with common hand tools.
- Good chemical and temperature resistance for durability.
Cons
- Requires clean surfaces for optimal bonding.
- Curing time can vary based on temperature and material.
- May not be suitable for all plastic or large fastener applications without testing.
Setup, Compatibility & Care
Setup:
- Surface Preparation: Ensure all threads are clean, dry, and free from oil, grease, and other contaminants. Degreasing is highly recommended for optimal performance.
- Application: Apply the threadlocker directly to the external threads of the fastener before assembly. For larger threads or blind holes, apply to the internal threads.
- Assembly: Assemble parts as usual. The product will begin to set as parts are brought together.
Compatibility:
- Primarily designed for metal threaded fasteners (e.g., steel, aluminum, brass).
- Suitable for threads up to M20 (3/4 inch).
- Perform compatibility tests on plastics or dissimilar metals before full application.
Care:
- Store in its original container in a cool, dry place, away from direct sunlight.
- Keep the cap tightly closed to prevent premature curing.
- Avoid exposing the product to extreme temperatures during storage.