should I paint something inside the aircraft for corrosion protection?

I saw some use zinc chrome inside before rivet to protect aluminum from corossion.
but zinc chrome is toxic, not clean.
it there any alternative?

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Tom, I used zinc chromate, but there is an alternative, zinc oxide that doesn't cause cancer in rats in California.

Zinc Oxide

I had bad luck with aerosol cans, they would clog if unused. I finally bought a quart can of zinc chromate and thin with acetone if it has been sitting for any length of time.

Jake
Thanks you Jake,
I found some Zinc oxide in China self spray. have no idear if it could be used in aircraft.
Tom, I started with zinc oxide but due the constant clogging I switched to using a self-etching aerosol primer and have used it with great success for priming the mating surfaces.

Dave
Thx Dave,
what is the self etching serosol primer you used at your aircraft? could you please give me a link or more details about it? I will try to find if it is available in China.
Tempco offers a zinc phosphate, replaces their zinc chromate, Aircraft spruce
Regards
Chris
What about Cortec?

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