removing dull haze from fiberglass?
Our trailer is a 2005 fiberglass and is a case where the inside was better than the outside. I suspect it has some sort of sun damage. Underneath the license plate and on 1 side, it is still shiny. ...
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You want something that will remove the layer of oxidation on the gel coat. That can be a marine product, a cleaner or a cleaner/wax. I've had really good luck with Jasco Prepaint Cleaner. It is a TSP substitute sold at the big box stores in the paint Dept. I dilute it and spray it on surfaces with a tank sprayer. Brush the surface and rinse.
