chrishelen
N/A
My white GRP boat is out for its annual spruce up, along the side I moor up are a few of the above, some are dark from off the pontoon wood. I have tried to scrub them out but they are still there. Any ideas?
scuffs and scratches.
- Thread starter chrishelen
- Start date
Tranona
Well-Known Member
Most GRP cleaners have oxalid acid in them so suggest you make your own from crystals and hot water. Thicken up with a bit of wallpaper paste to stop it running while it works its magic then wash it off. Better than shop bought. You can also try household cleaners such as CIF which can shift some stains.
chrishelen
N/A
Thanks, I cleaned the yellow staining off with oxalid but it won't touch the scuffs, might need a stronger solution?
Len Ingalls
Well-Known Member
Carefully sand with 400 grit & work up to 600. Buff with 3M cleaner wax.
Marine Reflections
Well-Known Member
What are the scuffs from?
What are they material wise?
What are they material wise?
chrishelen
N/A
The scuffs are from coming along side my pontoon and the fender popping out. Some of the scratches penetrate the shiny bit of the gelcoat.
Would Tcut work?
Would Tcut work?
Marine Reflections
Well-Known Member
What I mean is, what is the material of the scuff? If you were to zoom in on them, is it something that is sitting on top of the gel coat or is it more scratch like and gouged out some of the gel coat?
What colour are they? Could they be rubber?
Pics would be good if possible.
What colour are they? Could they be rubber?
Pics would be good if possible.
chrishelen
N/A
The pontoon is wood, quite surprised at the extent of the damage. Some from a while back when the same thing happened. They penetrate the gel coat, they were brown but I managed to rub the colour out so now they are white, but still there. There is a slight black mark from the rubber on the end of the pontoon finger, which is quite stubborn.
Marine Reflections
Well-Known Member
The T-cut may help, no harm in trying.
One or more of the following may help, but won't repair any gel coat, just help to dig these out of the highs and lows of the surface.
Acetone, with a microfibre. This will deal with the rubs from the rubber marks.
Water and a melamine sponge will hook out any staining debris from within the gel.
If these fail then I would agree with Len Ingalls above and say you were into using wet n dry, but perhaps a little finer than 400, maybe try 2000 first.
If you can catch your nail in the scuffs then you are into adding more gel, don't be tempted to sand these out or they will just leave a ripple.
If you do sand, then use a block so to go into the gel evenly.
One or more of the following may help, but won't repair any gel coat, just help to dig these out of the highs and lows of the surface.
Acetone, with a microfibre. This will deal with the rubs from the rubber marks.
Water and a melamine sponge will hook out any staining debris from within the gel.
If these fail then I would agree with Len Ingalls above and say you were into using wet n dry, but perhaps a little finer than 400, maybe try 2000 first.
If you can catch your nail in the scuffs then you are into adding more gel, don't be tempted to sand these out or they will just leave a ripple.
If you do sand, then use a block so to go into the gel evenly.
chrishelen
N/A
Thank you.
Marine Reflections
Well-Known Member
Welcome.
johnalison
Well-Known Member
My HR blue line got scuffed last year, when it blew a gale and someone removed the extra line I had rigged to keep me away from the pontoon. The blue line is just a very thin layer of gel over white, but in spite of this, I attacked it with 1200 wet and dry on a block, followed by rubbing compound and polishes. When I was buffing the line recently, I couldn't find where I had done all this, so be bold and don't worry if there are still marks after you have used cleaning compounds first.