Heat Proof Foam?

[mxylplik2]

I am building an addition and will have a pipe from the baseboard heat pass from one room to the next. I want to soundproof the room - so can I use a spray on foam on the baseboard pipe to seal the hole on the wall between the two rooms? Will a certain type of foam hold up against the heat of the water passing through the pipe?

[fat bob]

Ordinary silicone caulk is good to 400 degrees. But you can't paint it.

[west_seth]

You can be fire stop caulking at Lowes or Home Depot. It is caulking to seal a firewall say between a shop and an office. Don't know about painting it.But would think so. The stuff I have seen is reddish color. Be sure and check the temperature rating before you buy it.

This is a requirement in some applications.