The foam applicator is a disc-shaped pad made of tight-cell poly-foam. It is the industry standard tool for applying paste waxes, liquid sealants, and tire gels. Its absorbent structure holds the product evenly, while its soft surface ensures it glides over the paint without creating swirl marks. They are inexpensive and washable, but often considered semi-disposable. Using a fresh foam applicator prevents cross-contamination between products.