D'Addario restore deep cleaning polish is a formula designed to remove swirl marks and even light scratches from all clear coated instruments. Step 1 of a 3 part system. Designed to cut through the toughest grime Safe on all common guitar finishes Polish out swirl marks Help remove minor scratches Step 1 of a three part restoration system from D'Addario D'Addario 3-Step polishing system ensures your instruments finish maintains its lustre and durability. Whether you need a deep cleaning compound for grit and grime removal or a glass-like shine, weve got the right polish for you.