Somewhere under that gunk is shiny fiberglass. Here’s how to find it.
Fiberglass keeps a death-grip on grime, yet you can’t use abrasive cleaners on it or the poor sensitive thing will scratch. Most fiberglass cleaners we’ve tried (up to and including serious formulas for boats) claim a lot but do little other than work up a sweat and frustrated expectations. Our Fiberglass Cleaner removes bathroom scum and soap build-up like a dream. Also great for Corian and outdoor furniture.