To clean a fiberglass tub safely, use a homemade cleaning formula with a soft cloth or sponge instead of an abrasive scraper or scrubbing pad. Using a small basin, add warm water and baking soda or an oxygen cleaner, and mix together to create a cleansing solution. Alternately, pour warm white vinegar into a spray bottle and spray it into the tub to clean it.Continue Reading
Avoid abrasive bathroom or tub and tile cleaners because these cleaners scratch fiberglass surfaces. Gentle cleansers are available in stores, but it is typically more cost effective to mix your own solution at home.
Thoroughly cover every section of the tub with the cleaning mixture. Use the cloth or sponge and scrub the solution into the tub until the soap scum is removed. Use caution when scrubbing, as fiberglass is easy to scratch.
Use clean water and rinse the rest of the cleanser from the surface. Take a clean cloth or sponge and remove any extra residue from the tub. Use a spray-on cleaner or a baking soda paste to remove any additional tough spots in the tub. Make the paste by adding a small amount of water to baking soda until it is a consistency that sticks to the surface of the tub. Apply the paste to the tub with a sponge, rinse the spot, and repeat if needed until the problem area is clean.Learn more about Cleaning