protects what kind of fiberglass from what did you say?

huh? zincs and/or soapy water protect a fiberglass boat from sal****er?
Since
when?

Zincs protect against galvanic corrosion, which is more of a problem in
salt water than fresh.

Also, clean never hurts.

Tom
of the Swee****er Sea

JAXAshby wrote:
protects what kind of fiberglass from what did you say?
snip
OK, so we got carried away. We were talking about a fiberglass *boat*,
which includes certain metal underwater parts, e.g. propeller,
through-hulls, rudder shaft etc.

You are correct, the zincs don't protect the fiberglass itself. It will
protect the boat.

The biggest danger to the fiberglass parts, other than collision, is
probably UV sunlight. The wax will help protect that. Washing will
remove salt (corrosive) and, properly done, protect the wax.

OK?

Tom
of the Swee****er Sea