Originally Posted by Sid at SailAway
Could you further explain this petro tape? What is a source?
It's used on oil
vessels and other extreme environments to create a water and oxygen proof seal for metal parts
. I use it to wrap hydraulic fittings on deck
, and you can apply it on mild steel
, take the tape off 5 years later after exposure to salt water
and the metal shows no sign of corrosion
. They use it to wrap steel
pilings underwater to prevent corrosion
if that helps understand its effectiveness.
I have a check valve on the line out of the black water tank so black water stands in that line as well, so I wrapped it with PT once I could detect odor
and it pretty much eliminated it.
The product is cloth tape impregnated with a waxy product that does the sealing. You can smoosh it around fittings and it adheres to whatever you use it on, or just wrap it around the lines. Since it seals
metal against oxygen infiltration, I assumed it would seal exfiltration of other gases, and it seems to. You can get it at many commercial
fisheries supply stores. Stores catering to dude boats probably have never heard of it.
Worth a shot.....
BC Petro Tape
Denso North America - Denso Densyl Tape