I have many tiny rust coloured rain spots over the decking .Three months ago she was spotless.Someone suggested Ionic acid .Amazon selling Starbright Hull Cleaner .Anyone have this cleaning problem before ?
Tue, 26/07/2022 - 3:46pm
#1
Hull cleaner
Starbright do a deck cleaner as well which works well and gets rid of most stains unless they are rust which needs a special cleaner. I am at a loss as to why you have these spots unless rain had picked up ferrous dust from Africa and dropped it on you.
Simon
Has anyone been using an angle grinder nearby?
I find Bar Tenders Friend. It's powder in a bottle and you put in on the area and scrub with stiff brush...rust and leaf stain comes off a treat.
Thanks
Will get some from Dunhelm.
You can buy the proprietary products but a much cheaper method is to buy some Oxalic acid.
it is an organic acid that is a white powder and mix at about 50 gram/ liter with warm water.
it is great for getting the black marks out of teak but as a mild acid will remove any ferrous staining.
wash your hands though as it is poisonous.
I also use oxalic acid. A successful additional this year was some gravy thickener which stopped it running around, also handy for the orange stains above the waterline should you suffer. I believe people add wallpaper paste for the same reason.
I have used it to shift rust stains from fabric which was very pleasing.
Good stuff used sensibly