biggcol Posted January 14, 2012 Report Posted January 14, 2012 Can anyone tell me what is good for removing rust stains off of gelcoat. Boblin is in for her free engine service (open prize) next week so while she is out of the water we want to give her a good clean. The rust stains are where the rails are bolted through the fordeck. Cheers Colin Quote
shytalk Posted January 14, 2012 Report Posted January 14, 2012 oxalic acid it comes as powder mix with warm water for best result only way to stop the rust is to passivate and polish the back of the rail baseplates and seal with sikaflex Quote
Rob Posted January 14, 2012 Report Posted January 14, 2012 Found in the purple and orange cillit bang, Grime and lime. It has that acid in it and worked wonders on JoJo. Rob Quote
Fail'o Posted January 14, 2012 Report Posted January 14, 2012 Hi, you could try SolvoAutosol , its a cream paste in a tube , get it from halfords. hope this helps. Quote
Mike Fox Posted January 14, 2012 Report Posted January 14, 2012 Colin, There's a number of oxalic acid and phosphoric acid based gels and creams around too (I use "Y10"). Both turn the rust (ferrous oxide) into a clear, water-soluble chemical (ferrous oxalate or ferrous phosphate respectively) that vanishes quickly, and can be rinsed clean. Mike Quote
Paul J Posted January 15, 2012 Report Posted January 15, 2012 You can get the oxalic acid fairly cheaply on ebay, just mix with water Bleaches mouldy wood also PJ Quote
Sinbad Posted January 15, 2012 Report Posted January 15, 2012 Hi Colin, dont forget gloves if you have any small cuts on your hands..... smarts like bu%4#ry Ive had success with sealing the rail bases as well with silicon but you have to get rid of all the red stuff. Paul Quote
biggcol Posted January 15, 2012 Author Report Posted January 15, 2012 Thanks for the replies oxalic acid it is then, and gloves. I don't intend taking the rails off this time but will make a note to take them off and a good polish in the future. The worst of the rust is coming from the rails fitted by cheetah, I was careful to give the ones we made and fitted a good polish and fitted them with sikaflex. Thanks again Colin Quote
Jamie W Posted January 23, 2012 Report Posted January 23, 2012 (edited) Hi lads, i kept a close eye on this.. And thought i would try some Oxalic acid.. 500g for a couple of quid.. Bought a 2 litre pump sprayer for Edited January 23, 2012 by Jw2000uk Quote
codpiece Posted January 23, 2012 Report Posted January 23, 2012 Jamie where did you buy your ''bits?'' Derek. Quote
Jamie W Posted January 23, 2012 Report Posted January 23, 2012 Jamie where did you buy your ''bits?'' Derek. Ebay mate ;-) Item 250807206401 and 280393110775 Money well spent (pump spray isnt essentiol) Quote
great white Posted January 24, 2012 Report Posted January 24, 2012 Make sure that all of the acid is very well washed off If not the residue itself starts to stain. This also happens if the mix is to strong, for that reason I now use the pre mixed gel types [big Job or Y10] Nice job on Big Wednesday Jamie. Quote
Jamie W Posted January 24, 2012 Report Posted January 24, 2012 Make sure that all of the acid is very well washed off If not the residue itself starts to stain. This also happens if the mix is to strong, for that reason I now use the pre mixed gel types [big Job or Y10] Nice job on Big Wednesday Jamie. Cheers mate ;-).. I'll second that,A hosepipe is definatly needed... I sprayed and sprayed.... Im glad i stumbled on this thread, as it was exactly the info i needed.. Quote
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