Food grade sealers

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Mar 22, 2018
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Good afternoon.

I have three, 12v topsflo pumps. They work great but I guess I didn't rinse them out completely. I left some citric acid inside the pumps and it ate the protective finish off of the sintered iron rotor. I cleaned the rest off and I would like to seal them again.

I am wondering if anyone knows of a food safe spray coating that will withstand up to boiling wort/water?

I had an idea of using finger cots (think condom for your fingers) and food grade silicon in place.

Any suggestions?

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