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#1
November 18th 05, 01:19 AM
posted to rec.aviation.homebuilt
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"red oxide primer is a plus"
On Fri, 18 Nov 2005 00:13:25 GMT, Rip
wrote: mhorowit wrote: I was working with an A&P while he did a pre-purchase for me. He looked at the inside and remarked that 'red oxide primer is a plus". Can someone elaborate? what's it better than?- Mike Red oxide primer on what? On steel, its a plus. It's kind of "pre-rust", and helps to protect steel parts from further corrosion, to a limited extent. On aluminum (or magnesium, God forbid)it will promote corrosion (do a Web search on the galvanic series), and is a definite no-no. Rip Rip - 4130 - Mike 
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#2
November 19th 05, 12:11 AM
posted to rec.aviation.homebuilt
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"red oxide primer is a plus"
Michael Horowitz wrote:
On Fri, 18 Nov 2005 00:13:25 GMT, Rip wrote: mhorowit wrote: I was working with an A&P while he did a pre-purchase for me. He looked at the inside and remarked that 'red oxide primer is a plus". Can someone elaborate? what's it better than?- Mike Red oxide primer on what? On steel, its a plus. It's kind of "pre-rust", and helps to protect steel parts from further corrosion, to a limited extent. On aluminum (or magnesium, God forbid)it will promote corrosion (do a Web search on the galvanic series), and is a definite no-no. Rip Rip - 4130 - Mike 4130, no harm, no foul. Rip
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