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Richard Casady

On Wed, 30 Jul 2008 06:58:45 -0400, wrote:

On Wed, 30 Jul 2008 01:21:16 GMT, (Richard Casady)
wrote:

On Thu, 10 Jul 2008 06:35:50 -0400, wrote:

Just the same, I know quite a few folks who thought all "Silicone" was the same,
and they bought their's at Home Depot to save a few bucks. OOPS! The home
version releases ACID as it cures. Pretty hard on boat hardware.

Acetic acid, that is, vinegar. Not in a class with some other acids
for corrosiveness, but not desirable. Won't normally do much to
stainless.

Casady

Vinegar is greatly diluted acetic acid. Something around 5% acidity. Acetic acid
can also be 20%, 50%,100%, or anything in between, all which might surprise you
with their effects on metals including stainless.

We are discussing silicone caulk. What is the concentration of the
acid?

Casady