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Strike-Hold Home Page
This is incredible stuff. I used it to loosen shackle bolts on on an old Blazer I was taking the high-rise springs off. This stuff actually [after a day] penetrated the entire length of the steel spacer with the bolt inside it and loosened it enough to unbolt the spring sans torching. It's getting quite a lot of use in Iraq also. It's great on guns, etc. Read the whole page, it's well worth it!