scotty123
Well-Known Member
1) What is the best stuff to use for cleaning 'rust' off sails?
2) Whats the best stuff for cleaning/renewing gelcoat on a small hull?
2) Whats the best stuff for cleaning/renewing gelcoat on a small hull?
Sails & Hull, refurb?
- Thread starter scotty123
- Start date
rjandhl
Well-Known Member
You could try white vinegar for the rust stain.
machurley22
Well-Known Member
There are all sorts of wonderful and expensive rubbing compounds and waxes but assuming you have a generally dowdy but sound white hull on a MWB (Manky Wee Boat - not intended to be insulting - I have one myself) and other things to spend the budget on I would use Cif on a wet cloth followed by lots of rinsing, then oxalic acid (or Harpic limescale remover if you can't find oxalic at a sensible price) for the residual brown staining and finish with several coats of Turtle wax.
All IMO of course.
All IMO of course.
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alant
Well-Known Member
Oxalic acid on a hull?
machurley22
Well-Known Member
Absolutely standard practice surely. The active ingredient in Y10 etc.
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cliffdale
Well-Known Member
Following a recommendation on here, I bought some of this...
It took all the yellowing off as in the video. Its a pity I dont know the active ingredient!
http://www.youtube.com/watch?v=1B-adZLJuyw
It took all the yellowing off as in the video. Its a pity I dont know the active ingredient!
http://www.youtube.com/watch?v=1B-adZLJuyw
Fascadale
Well-Known Member
I absolutely agree with Mr Machurley22.
Oxalic acid is the stuff. This is what you need.
That will restore the whiteness then you just need some polish to bring back the shine, but that's a whole other thread.
Oxalic acid is the stuff. This is what you need.
That will restore the whiteness then you just need some polish to bring back the shine, but that's a whole other thread.
jwilson
Well-Known Member
Yes - if you see a more than a few year old white boat with no yellow-brown stain round the waterline it's because oxalic acid (or a more expensive brand-name product containing it) has been used. Also gets rust stains from mooring chains off white decks remarkably effectively.
VicS
Well-Known Member
Id be surprised if it does not contain oxalic acid
alant
Well-Known Member
Think the OP, was asking about rust on sails.
Ref Oxalic acid on waterline dirty marks, a mate has a copperbot bottom, which while keeping the underneath clean of weed, the area directly above is manky (dirt).
So, is it safe to use oxalic acid in proximity to copperbot (or similar).
wotayottie
Well-Known Member
I used it on my waterline and I have coppercoat. Didnt disappear into a fizzing mess.
But in any case if he uses my wallpaper paste trick to turn the oxalic acid solution into something that wont run, then the only slight risk is at the wash off stage and lots of fresh water will deal with that before it can do any serious damage even if it was going to do..
But in any case if he uses my wallpaper paste trick to turn the oxalic acid solution into something that wont run, then the only slight risk is at the wash off stage and lots of fresh water will deal with that before it can do any serious damage even if it was going to do..
Bobc
Well-Known Member
I would suggest first wiping the hull over with Acetone on a rag. This wil get all of the chalky-linescale type buildup off. If you have yellowing, then use Oxalic acid. Then cut and polish.
Just mind you don't get the acetone anywhere near rubber seals or the windows.
Just mind you don't get the acetone anywhere near rubber seals or the windows.
Fascadale
Well-Known Member
I think the OP was also asking about "cleaning/renewing gelcoat" but never mind.
alant
Well-Known Member
According to the blurb, they washed off using 3000psi.
Suprised there's any gelcoat left using that pressure.
