I have found a paint system that is called
P.O.R. ( Paint over rust ) Developed in the regards, Hugh From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of ShellyDalg@aol.com Hi David. We talked on the phone about
this, but I thought I'd send it here to all the guys. I've used a product over the years with
great success. It's called Vulcem and is a liquid polyurethane that comes in a
can. I used a paint brush to apply it, and have
seen it hold up well in many applications over extended periods of time. As far as I can tell, it's impervious to
most everything ( except solvents) remains flexible for years even in
direct sunlight, and is really strong. It tends to thicken up in cold
temperatures so application should be done when it's warm. I plan on applying a coat on top of the
compression fittings and cable connectors where they meet the through-hulls as
a back-up sealer. This stuff is really tough, and even when I used it on some
seams inside chemical/acid double containment tanks at a local Intel plant, It
was still in good shape after 5 years. I used it on metal seams on the
roof and the metal regularly went from 150 degrees in summer sun to below
freezing in winter. A leak developed up there so we went up and surveyed the
whole job and basically went over the whole system with a fine tooth comb
trying to trace the leak. Turned out it was a lead flashing near the roof
penetration, and not the Vulcem protected seams and joints. This was after over
5 years. It stays flexible, is grey in color, and
although it's a pain to remove, not any more difficult than silicone from a
tube or Sika-Flex. It is liquid enough to float out nice and smooth when
applied on a warm day, and with a little masking tape, a nice clean looking job
can be achieved. Possibly a way to mitigate
replacement hassles would be to put those heat-shrink tubes over the
connectors, and then the Vulcem over that. In that way we might be able to just
score the shrink-wrap tube with a knife and pull the whole thing off without
having to clean the stuff off the threads or whatever. ( I haven't tried this
yet, but it makes sense.) Anyway, just thought I'd throw that out
there. Frank D.
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