Clean cultured marble shower walls by washing them with a mild detergent, rinsing away the soap, applying vinegar to remove hard water stains and polishing the walls with fiberglass wax. Prevent future water spots by drying the walls after each use.
- Wash with mild detergent
Use a soft cloth or sponge to wash the shower walls using a nonabrasive detergent or foaming bathroom cleaner. Abrasive cleaners remove the high gloss finish from cultured marble.
- Rinse the walls
Use water to rinse the detergent from the walls. Dry the shower stall with a soft towel.
- Remove the water spots
Mix equal amounts of distilled white vinegar and water in a spray bottle. Apply the mixture to any water spots or soap scum on the shower walls. Allow the mixture to sit for 30 minutes to dissolve the spots. Rinse with a wet sponge, and dry the walls again.
- Polish the walls
Restore the shine to cultured marble by applying a fiberglass or counter wax to the walls. After the wax dries to a white haze, polish it by hand to bring back the shine. Apply the wax every six months to maintain the shine.
- Prevent future water spots
Keep a small squeegee in the shower for wiping down the walls after each use. Keeping the walls dry reduces the formation of water spots and soap scum, making it easier to clean cultured marble.