dgeesaman
Gold $$ Contributor
It is out of control. They have wicking grade, extra viscous, drinking water safe, mil spec this, mil spec that, extra high temp, extra fast cure, etc etc.Heck, I think I remember back when ALL loctite was red. Then we had blue which was a 90% more friendly alternative. Now, I guess it's on a spectrum that can only be gauged by numbers. I wouldn't be surprised if there is a rainbow type for applications that I don't even want to think about.jd
It is risky to assume that all red is the same, but they're still somewhat similar. In order of strength and appropriate size of bolt, it goes purple->blue->red->green->(black). So on my guns I'd use purple or blue at most since red and green are actually intended for threads starting at 1/4" diameter and larger.
While red and green loc-tite are very strong, and easily softened using a bit of heat, I agree with the poster who mentioned that the average person working on the gun will not realize they need to apply heat before they already exceeded the point of destruction.