The WONDERBAR is a clay-like material that removes overspray, rail dust, acid rain, tree sap, hard water spots, industrial fallout, lifting virtually any embedded contamination out of the paint. It cleans the paint and prepares it for the application of wax or sealant. Just lubricate the finish, and rub the bar over the paint! It's that easy! The clay pulls any embedded contamination out of the paint- after using the paint will feel smooth and clean like it's been waxed but it's now clean, and no dirt or old wax residue remains. Now a new coat of wax will bond directly to the paint and you will notice a higher more durable shine! Now your wax will apply and come off evenly, without streaking.