Thread: Rusty boat trailer.

Originally Posted by Fireflite

A mate had his wood business trailer painted with inorganic paint (what ever that is) 8+ years ago. While not new, its in bloody good nic and done a shite load of work!

It will have been inorganic zinc silicate, basically the next best thing to galvanizing. Very hard for a diy to use and needs to go on a sandblasted surface ideally within 2 hours of blasting.
To be effective zinc metal containing paints must be in intimate contact with the steel surface for them to work. Putting them onto rusted or painted surfaces is a waste of time and money.