Maintain and deep clean porcelain countertops, vanities, showers, tubs, and more with Granite Gold, 24 oz., Porcelain Cleaner. Formulated for both polished and matte finishes, this cleaner will preserve the beauty of your porcelain surfaces and keep them streak-free. Granite Gold Porcelain Cleaner is approved by Moderno Porcelain Works, the authority on porcelain fabrication and installation.