Permatex Threadlocker High Strength Fast Acting Nut & Bolt Sealant - Red
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Product Information
Full details
Permatex High-Strength Threadlocker Red is designed for professional mechanics and automotive enthusiasts who require a permanent, vibration-proof seal on heavy-duty assemblies. It excels in securing studs and press fits ranging from 3/8 inch to 1 inch, offering a robust 3,000 PSI of holding power. While it is an excellent alternative to mechanical fasteners like snap rings and set screws, users should be aware that the high-strength permanent bond typically necessitates localized heat or specialized tools for future disassembly.
All features
| Colour | Red |
|---|---|
| Brand | Permatex |
Extended Product Information
FAQs
Can I use this on small screws?
This product is formulated for 3/8 inch to 1 inch fasteners; using it on smaller screws may make them impossible to remove without damaging the surrounding material.
Is Permatex Red removable?
Yes, but it is considered a permanent threadlocker. You will likely need to use heat or specialized heavy-duty tools to break the bond.
Does it work on plastic threads?
No, this product is designed for metal-to-metal contact and may damage or fail to bond properly with plastics.
How long does it take to cure?
While it sets quickly, full cure strength typically occurs within 24 hours depending on the ambient temperature and material types.
Should I apply the threadlocker to the bolt or the hole?
For best results, apply the product to the male threads (the bolt) before inserting it into the tapped hole.
Troubleshooting
Fastener will not loosen during maintenance
Apply direct heat to the bolt or stud to soften the cured threadlocker, then use hand tools while the part is still warm.
Threadlocker did not cure
Ensure that the surfaces were completely clean and free of oil or grease, and verify that the gap between threads is within the manufacturer's specified tolerance.
Pros and Cons
Pros
- Provides a permanent, vibration-proof seal
- High-strength formula delivers 3,000 PSI holding power
- Ideal replacement for hardware like snap rings and set screws
- Specifically formulated for larger bolts and studs
- Excellent for critical heavy-duty automotive applications
Cons
- Requires heat or special tools for removal
- Not suitable for small or delicate hardware
- Permanent bond can make routine maintenance challenging
- Not intended for plastic or non-metallic threads
Setup, Compatibility & Care
To ensure proper bonding, always verify that the threads are free of dirt and lubricants before application. Apply sparingly, as excess liquid can migrate and bond parts you did not intend to seal.
Compatibility
- Fastener Size: 3/8 inch to 1 inch (10mm to 25mm).
- Materials: Best for metal-to-metal applications.
Removal Instructions
Because this is a high-strength formula, you cannot remove it with standard hand tools alone. To disassemble, apply localized heat (typically 500°F/260°C or higher) to the fastener to break the chemical bond, then use appropriate wrenches while the assembly is warm.