Black Caulk on B-Vent

[Nick Ostrowski]

Is anybody aware if there is any caulk actually rated for this type of application? This is a B-vent for a furnace with black caulk on the exterior.

[Nick Ostrowski]

Never mind....got my answer. I should search before posting.

[chris mcintyre]

Never mind....got my answer. I should search before posting.

Since you have already done the research, the answer is? :)