I used Protectakote WB to repair the cracked shower tray in my campervan, as recommended on their website. It arrived very promptly, but appeared to be old stock - there was a ring of rust under the lid of the tin, and the paint had separated into water and sludge. Required an awful lot of stirring. In the end, it did a good job, but the online instructions were wrong. Don't use their textured roller - it delivered much too much paint, which then pooled and wouldn't dry. I had to mop it up after 12 hours and start again. A stippled action with a brush worked much better.