My mower deck needs a coat of paint, looking round the web a few posts recommend POR15 for inside the deck, but other posts rubbish it. Has anyone tried this?
I used por15 last week to coat the inside of a diesel tank on a Ransomes mower that was rusted and I was changing diesel filters like they were going out of fashion and it seems to work really well. Had to clean it with the degreaser first and then use the metal prep before the paint . Give frosts a call they were very helpful and put me on the right track.
If POR-15 peels, it was either used on the wrong substrate or was not prepared correctly. What POR-15 is excellent at, is coating rough, pitted, lighly rusted metal. You will not remove the coating without an angle grinder.
What POR-15 is very bad at, is coating new or smooth, good shiny steel etc. For those materials, you can try the Metal Ready, which etches and leaves a zinc coat which will then bond well. However, the last lot of Metal Ready I bought appeared to have no effect on the metal even after 24 hours and so there was no point in overcoating it. I never did get around to making a complaint, but hopefully, it was just a bad batch.
The original Finnigans Hammerite was good as was their "Brown Velvet/No1 Rustbeater primer undercoat but they appear to have fallen victim to legislation driven reformulation and reports are not good.
The POR15 appealed because it's supposed to stay slightly flexible so it may be a bit more chip resistant than hammerite. I suppose that I could use Galvafroid and then Shutz to give it a bit of a rubbery coating. Is the Joutun paint flexable when it's cured?
I did mine with odds and end of car primer, paint and lacquer from rattle cans Seems to be sticking quite well after a year or so. I did sand it back to clean rust free metal before I started though. I guess I ought to redo it with something a bit more suitable at some point...