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Review on Permatex 19962 12PK Permanent Strength Threadlocker by Chris Owens

Revainrating 5 out of 5

Screw locks have a limited shelf life

I realized that when I realized that my two old screw locks were no longer hardening through use. Permatex did what it was supposed to do. Once opened, expect a lifetime of several years in the original packaging. My oldest was over 5 years old.

Pros
  • Car care
Cons
  • Hard to say