For stubborn stains, use a tine abrasive household cleanser followed by waxing to restore original luster.

For non-water-soluble stains, such as grease, oil, and rubber heel marks, use a solvent such as acetone, rubbing alcohol, toluene or xylene, followed by a mild detergent.

• If these solvents are not effective, try a rubbing compound or fine sanding followed by waxing.