WebOxalic acid will remove a lot of stains, but if your gelcoat has truly turned to a yellow color and not just yellowed wax, imbedded dirt or other stain, I doubt oxalic acid will whiten it. I just mix oxalic acid in water in a spray … WebSep 26, 2024 · Feb 2, 2005. Posts. 78,730. Location. West Palm Beach, FL. I was able to clean off the yellow surface using acetone, but it takes a lot of finesse. The acetone actually dissolves the top layer of the plastic, so you can mess up badly if you don't quickly develop the right touch (a practice piece helps a lot). Lacquer thinner or MEK works about ...
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WebAug 27, 2009 · That's from the gel coat being sprayed at a sharp angle and too thick. The pigment, fillers and resin will separate and the resin rich areas turn yellow. Sometimes … WebJul 30, 2014 · Old gel coat is the yellowed and hazy coating that develops on the skin of your RV. Over time gel coat becomes cloudy and foggy due to a natural process called oxidation. Fortunately gel coat oxidation can … langley park junior school term dates
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WebHere you can learn about what is needed to apply a Gel Coat. 1. Prep the area removing all of the damaged gel coat Keep the repair as small as possible. Prep the damaged area … WebMar 1, 2016 · You need to remove the top surface of the discoloured gel to expose the original colour. Compound will do this but depending on the manufacturer and the amount of light and heat exposure you may find that the discolouration is deeper than initially thought and quite possibly not uniform across large surfaces. WebJul 5, 2024 · Continue scrubbing until the stains are completely lifted. Rinse off any stain residue. How to write yellowed Gelcoat. If your cultured marble is yellow, then you should know you have a great deal of work to do. To get rid of yellowish stains on gel coats, you will also need an abrasive cleaner and your best bet is Oxalic acid. hemp in lotion