Question about Loctite

katy

Well-known member
What's the difference between red and blue Loctite? Other than the colour that is.
I tried a web search and all I came up with was numbers, no colours.
 
stay away from purple & green as they are "stud tight" . not user friendly . I use both red / blue with good results .
 
i use the green on carrier bearings

I did too on my AA worm drive. At work we have it on large spindle bearings and machining center rams, if you want that bearing or race to stay put use green. If you ever want to remove it better get a cutting torch to get it red hot....

blue is removable by hand tools, red you better get an impact, green and purple better get a cutting torch...
 
Purple is low strength, suitable for small screws. There are a bunch of different greens. One is wicking, you add a drop to already assembled fasteners. The other greens are for press together things like bearings and shafts. The red is high strength, is available in regular or high temp and require heat to disassemble. Blue is med strength and comes apart easily.
 
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