How to Clean Cultured Marble Countertops

Cultured marble countertops require gentle cleaning to prevent damage to the coating.

The gel coating that gives cultured marble its shine also creates a non-porous, stain-resistant surface. This helps keep bathroom counters free of shampoo and cosmetics stains, and protects kitchen counters from food stains. Even so, these counters require regular cleaning to remove surface dirt and debris. When the countertop's shine and water-repelling capability diminish, you'll also need to re-wax it. Knowing how to clean cultured marble countertops correctly helps you to avoid damaging the protective coating and dulling the marble's luster.

Things You'll Need

• Non-abrasive cleanser
• Cellulose sponge
• Cloth
• Mild dish soap
• Nylon scouring pad
• Terry-cloth towel, T-shirt or microfiber cloth
• Colorless, non-abrasive wax
• Automotive wax applicator or soft sponge
• Buffing cloth

Instructions

1. Wipe down the countertop with a non-abrasive cleanser applied to a cellulose sponge. Options include bathroom counter cleaner, fiberglass tub cleaner or glass cleaner. A wet cloth with mild dish soap is another alternative. This removes surface dirt, light stains and soap buildup.

2. Inspect for hard water stains, mineral deposits and wax buildup. Mineral and hard water stains appear as a white, chalky film or crust. Remove this with any product designed for removing minerals like iron and calcium. Leave the product on for as little time as possible. If you have to scrub off wax buildup, use only Teflon-safe material like a nylon scouring pad.

3. Dry the countertop thoroughly with a soft, absorbent cloth such as a terry-cloth towel. To leave less lint behind, use an old T-shirt or microfiber cloth instead. If the countertop appears dull, continue to Step 4.

4. Apply a thin, even layer of wax with an automotive wax applicator or soft sponge. Use only colorless, non-abrasive wax. If you can't find a wax or polish designed for cultured marble or granite, use automotive paste wax. Polish the countertop to a shine with an automotive buffing cloth or other soft cloth.

Tips & Warnings

• Don't use colored wax or polish. It may stain the sealant where the marble panels join.

• Avoid harsh cleaners that contain ammonia, bleach or acetone. These may discolor the marble.

References

• Superior Home Products: Cultured Marble Cleaning and Care Instructions
• Cultured Marble Guru: Cleaning Tips and Cleaners
• Custom Marble Designs Inc.: Care and Cleaning of Cultured Marble, Onyx and Granite
• City of Mesa