
11/03/11, 07:01 AM
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Join Date: Jan 2008
Location: Florida and South Carolina
Posts: 2,167
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WD-40 used to come in a nice plastic spray bottle- round with a low center of gravity that doesn't tip. Now they have a cheap bottle that is tippy. Lucky my old ones are still working. I buy it in a gallon can, but mostly just use it to machine aluminum. It's great for drilling.
Kroil is great, but very expensive. I use it on the stubbornest fasteners. It doesn't work on outboard motors that have been around salt water. I haven't found anything that penetrates that white powdery stuff from the salt environment. I've soaked things for weeks, applied heat, etc., only to have the threads still covered in dry white powder.
I work in the tool and die trade, and there are many long-term protectants that work well. The best leave a waxy residue. Tool steel rusts very easily. The very best is a hot dip wax which is oil impregnated. You need a hot dip pot big enough for what you are dipping. When I left my job to build a house, I dipped all of my precision tooling. It will be safe for years.
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"What one generation tolerates, the next generation embraces." -John Wesley
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