What about high temperature Silicone RTV?

Jeff


"Gary Warner" wrote in message
...

Where the exhaust pipe goes through the transom
I'm going to pack some heat-resistant fiberglass
rope around it. But it also needs some calk to
keep the water out. I don't imagine it can be
*that* hot but the cooling water flowing through
will heat the pipe some.

What type of calk can I use that will be OK
in that heat?

Thanks,
Gary