# TLDR Review: Permatex Threadlocker Blue Gel

*Published: 2026-05-26 | Updated: 2026-05-26 | Source: https://shopsavvy.com/reviews-tldr/permatex-threadlocker-blue-gel*

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## Product: Permatex Threadlocker Blue Gel
**Brand:** Permatex

## 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

## Bottom Line

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.

## Pros vs Cons at a Glance

| Pros | Cons |
|------|------|
| The gel formula stays where you want it, reducing mess and waste during application | The small size may be costly per ounce, especially for larger projects |
| The tapered applicator makes precise placement on bolts and hard-to-reach areas easy | It requires thorough cleaning of threads for optimal adhesion |
| Provides a strong, reliable medium-strength hold to prevent loosening from vibrations | Not suitable for applications requiring a very high-strength lock (this is medium strength only) |
| Easy to disassemble with hand tools, offering flexibility for maintenance or rework | Some users might prefer liquid versions for larger or more fast-paced tasks, as gel can be slower to spread |
| Works well as a sealant for hydraulic lines when properly cleaned and applied | The product’s effectiveness depends on proper application; improper use can lead to loosening |
| 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 |  |

## Current Prices

| Retailer | Price | Availability |
|----------|-------|-------------|
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| SupremeDIY.com | $6.95  | In Stock |
| After Hours Auto Parts | $6.99  | In Stock |
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| Blain's Farm & Fleet | $6.99  | In Stock |
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| Summit Racing -> eBay | $6.99  | In Stock |

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*About this review: We pulled together findings from professional and user reviews, and cross-referenced them with ShopSavvy's pricing data from thousands of retailers to give you the short version.*