I decided to treat my K2 tank, as it showed signs of rust, and is not what you would consider a sparkling example. We paint stripped it prior to the treatment, and ... it has seen better days, but was salvageable.
I read numerous posts here on these forums, and various spiels re: rust treatments around the web, and POR15 seemed the ovbious choice to me. I found a local distributor, and purchased the motorcycle kit.
From here, I followed the instructions carefully, and used the POR15 kit. All went well, or so it seemed. After some time, not sure exactly how long, as It was left in a mates workshop an hour away, much of the treatment started to come loose and flake off. After some close inspection, it appears the tank had been previously treated with some kind of treatment that left a "invisible" plastic film lining the tank. The two treatmens either reacted, or some part of the POR 15 process loosened the original lining. I will say here, the POR15 kit is not at fault, as it is not designed to coat over an existing treatment.
To some extent it is a good thing, as the original coating appeared to have been applied over a still rusty surface and would have ended up destroying the tank anyway. However my dilemma is now hot to remove the remaining layers from the two treatments? Is the tank a write off? or can I get it chemically cleaned somewhere or somehow?
Cheers.
