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sacrificial aluminum
Hi Y'all,
I am in the process of assembling my workshop prior to ordering a quickbuild RV kit. I can see that some priming is necessary, even with a quick-build kit. I own an airless sprayer that might be suitable for primer application on small parts. The sprayer was mainly used to spray bottom-paint on my sailboat. The paint is teflon based, mixed with powdered copper. Of course I cleaned the sprayer according to the instructions, but the reservoir seems stained, and I wouldn't be surprised if a small amount of copper was still in the inner works of the sprayer. My question for the chemically inclined among you is this...Would copper act as the sacrificial metal or would the aluminum I am trying to protect sacrifice itself for the copper? kleindoc |
#2
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Aluminum has a lower electronegativity (greater tendency to oxidize) than
copper, so it will sacrifice itself for the copper. From: "Rob" Date: 7/12/2004 11:07 AM Eastern Daylight Time Message-id: My question for the chemically inclined among you is this...Would copper act as the sacrificial metal or would the aluminum I am trying to protect sacrifice itself for the copper? kleindoc |
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