Should I take time to clean my circular saw blade after cutting pressure treated lumber? Since fasteners other than stainless steel or galvanized can corrode when used in pressure treated wood, is it going to cause my blade to corrode? Or is it only prolonged exposure?
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You have to cut the wood somehow... You can give your blades a wipedown with a slightly damp rag to remove sawdust particles (let them air-dry well afterward), but I wouldn't worry too much. It's mostly a problem with long-term contact; the copper compounds in the chemical treatment cause a galvanic reaction with most metals, rusting them. To prevent this, stainless and hot-dip galvanized fasteners, which resist corrosion each in their own way, are recommended for long-term contact (like months and years), but your carbon-steel/carbide saw blade will only be in contact with the wood and its chemicals for some seconds. Your saw blades will dull naturally through age and use before the chemicals have any detectable effect. |
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