Lots of different ones it seems. Which one would be best for preparing the jacking points prior to under sealing them. Fortunately the jacking points are in good order just need a lick of paint that's all.
I wouldn’t use POR Nick. Expensive and doesn’t work well in my experience. A good wire brushing, a squirt with rust stabiliser (I do actually use POR Metalready), then a splosh of black Rustoleum. Best combination I’ve used.
Or any stabiliser, really - Kurust and the like. They all tend to be phosphoric acid (Metalready has some zinc as well). I used it because I had some! Just turns any remaining rust bits into iron phosphate, which is stable for painting over.
If you can get the area back to bare metal, you have the option of zinc primer followed by epoxy two pack black. Otherwise, as above, Rustoleum seems to have a good rep.
Another (rusty) nail in the POR coffin - apparently it's quite toxic.. http://www.914world.com/bbs2/index.php?showtopic=358642&hl=POR15
Think it's just the smell of the solvent. EpoxyMastic really will get your lungs going, as it's effectively 2-pack. I can't go near the stuff any more. POR will cement the lid on the can, tho', then go completely solid. I had to chuck mine out
In the end I went with Hammeright body underseal. Luckily all the jacking points are solid still, having been replaced about 12 years ago. Thanks for all the advice most welcome.
It’s good stuff when used properly It’s bodgers slapping it straight over rot to hide it that give it a bad name.
