AeroKroil is the aerosol version of Kroil "The oil that creeps" penetrating oil from Kano Laboratories. The stuff is amazing to loosen up rusty bolts you thought you would never get off. It is the only penetrating oil I have now in my garage for repairs and home projects since having thrown out PB Blaster because Kroil just simply blows it away. I never cared for the stink either PB has when you use it. I have used this to free up a frozen piston on an engine letting it soak overnight. I recommended it to one of my friends who owns a auto repair shop. This is all he uses now.
It is also great for removing fouling and leading in a bore. I use the liquid version in the can to moisten patches to clean the bores of my rifles, hand guns, and shotguns. For severe leading, let the bore soak for a while, brush, push a patch through and see chunks of lead fall out. I have also used Kroil and 0000 steel wool to dissolve and remove surface rust on a LC Smith Syracuse E grade hammer gun. After cleaning and applying a coat of Forby's Tung oil, the barrels came out perfect.
Great stuff.
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