From the HBD Archive
Subject: Silicones and You
Date: 1992-07-13 18:57:17 GMT

Good Morning all,

Just a bit more about silicone caulking. As I understand it, there
are silicone grades available that are FDA approved for food use. They
should handle both the temperature and the pH of the mash. They will
corrode a copper pipe, however. The acetic acid released as they cure
is responsible. Also, when trying to seal a thermoplastic cooler, they
may require a primer to adhere properly. The primer may not be FDA approved.
Therefore, it is suggested that a mechanical solution be found instead.

Better Living through Zymurgy,

Pete Oehler

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