Review on 🧼 Bar Keepers Friend Powder Cleanser 12 Oz - Multi-Surface Cleaner & Stain Remover - Ideal for Bathrooms, Kitchens, and Outdoor Areas - Stainless Steel, Aluminum, Brass, Ceramic, Porcelain, Bronze, and More (2 Pack) by Fred Reid

The 40 year old shower stall in the house I inherited presented me with a difficult cleaning task. I've tried different approaches to removing rust stains and limescale from fiberglass. All with extremely limited success. I resigned myself to the fact that the shower needed replacing. I had a bartender friend clean and polish the stainless steel cookware and also the stainless steel sinks in the house. I saw on the label that it can also be used on fiberglass. I was skeptical. I tried a small test patch and was absolutely blown away by how quickly and effectively it removed those rust stains that I had previously tried unsuccessfully. It took half a can and about 45 minutes of work. Needless to say I am very satisfied. Eventually the shower will be replaced, but at least until then it's clean. I highly recommend BKF.