TLDR Review: Permatex Threadlocker Blue Gel
Verdict
We think the Permatex 24005 Medium Strength Threadlocker Blue Gel is a handy, mess-free solution for securing bolts and preventing vibration-related loosening, especially in repair or maintenance scenarios. Its precise applicator and gel consistency make it ideal for detailed work or delicate projects. However, for larger jobs, you might want to consider a bigger size or a liquid variant to save time and money. If you’re looking for a reliable, versatile threadlocker with easy application, this product fits the bill, but keep in mind its size and medium strength limitations.
- Top pro:
- The gel formula stays where you want it, reducing mess and waste during application
- Top con:
- The small size may be costly per ounce, especially for larger projects
Pros
- •The gel formula stays where you want it, reducing mess and waste during application
- •The tapered applicator makes precise placement on bolts and hard-to-reach areas easy
- •Provides a strong, reliable medium-strength hold to prevent loosening from vibrations
- •Easy to disassemble with hand tools, offering flexibility for maintenance or rework
- •Works well as a sealant for hydraulic lines when properly cleaned and applied
- •Small 5g tubes are convenient, minimizing waste and easy to store
- •Suitable for nut and bolt applications ranging from 1/4 inch to 1 inch (6mm to 25mm)
- •Eliminates the need to stock lock nuts or washers for many uses
- •Effectively prevents corrosion and seals threads against leaks
- •Compatible with metal and designed for repair and carpentry projects
Cons
- •The small size may be costly per ounce, especially for larger projects
- •It requires thorough cleaning of threads for optimal adhesion
- •Not suitable for applications requiring a very high-strength lock (this is medium strength only)
- •Some users might prefer liquid versions for larger or more fast-paced tasks, as gel can be slower to spread
- •The product’s effectiveness depends on proper application; improper use can lead to loosening
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How we researched this
About this review: it summarizes the professional reviews and customer ratings ShopSavvy collected for this product, alongside prices from 1 retailer in ShopSavvy's price data, most recently seen Oct 22, 2026.
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