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WaLa8A5qwm8
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Anyone know what he's using to etch the steel coupons?
Richard
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LtBadd wrote:Anyone know what he's using to etch the steel coupons?
Pretty sure he uses Naval Jelly on carbon. He might speed up the film a bit.

Steve
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Sometimes he refers to a stainless steel passivating fluid that's a lot quicker than Naval Jelly.
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