I want to clean some rust stains off the GRP this weekend.. It's too late to order oxalic acid online and be sure to get it by Friday afternoon so I need to get something from the high street..
The usual selection of shops around eg. Sainsburys, Tesco, Wickes, Halfords etc..
I have looked at the Harpic toilet cleaner with lime scale remover and it contains Hydrochloric acid.. Other cleaners in the house I have looked at have citric acid but nothing so far with oxalic acid..
Which household products available in these stores would have a high enough concentration of oxalic acid to do the job??
Results 1 to 10 of 25
03-07-13, 19:48 #1
Which household products contain enough oxalic acid?
03-07-13, 19:50 #2
03-07-13, 20:01 #3
Or Y10 from a chandlers if you can get to one.YAPP open source marine electronics hobby projects
03-07-13, 20:01 #4Registered User
- Join Date
- Feb 2010
03-07-13, 20:20 #5Registered User
Location : Home: Kent. Boat: Chichester
- Join Date
- Jul 2002
The Harpic limescale remover contains HCl as you have discovered.
Cillit Bang Lime and Grime contains sulphamic acid. Just this week used that to effectively clean some heavy rust staining and deposits from a length of rope.
Citric acid will do it but less effectively than oxalic.
Last edited by VicS; 03-07-13 at 20:22.Sea Wych Owners Association: www.Seawych.org
03-07-13, 20:21 #6
Bar Keepers Friend is available from some of the bigger Asda's. Not sure about other supermarkets.
03-07-13, 20:54 #7
Thanks for the chemist suggestion.. Don't know why I didn't think to try that.. I think there is an independent one that may get it for me.. Failing that I might need to make a detour to ASDA on the way to the boat..
03-07-13, 22:34 #8
I had no luck whatsoever with chemists, chain or independent.Most had no idea what I was talking about.
Get Astonish cream oven cleaner. Safe on GRP. I cleaned up all the decks (including bad rust stains) on my motor boat with it.
03-07-13, 23:08 #9
Why don't you just pop into a chandlery and buy some rust stain remover?
03-07-13, 23:10 #10