Got even better stuff, called COLD SHOCK made by J walter company. Walter company very well known for abrasives and drill bits and industrial solvents. Spray is worth I think about $10 can$. One good for I think it was 4 bolts. The stuff "super" fast freezes the nut/bolt busting it loose. You will find Walter products in industrial hardware stores. Look on the web under J. Walter. For sure available in US along with other interesting stuff.

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