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Hard water and road grime take a toll on fiberglass RV exteriors, leaving behind rust streaks, scale, lime deposits, and yellow staining that regular soap won't touch. Bio-Kleen Fiberglass Cleaner is formulated to penetrate that mineral buildup fast and dissolve it, so you can rinse away corrosion and soap scum without heavy scrubbing.
Beyond the RV exterior, it also works on boat hulls and pontoons, wheels and rims, sinks, tubs, shower stalls, and ceramic tile and grout - one bottle covers a lot of cleaning jobs around the rig and campsite.
