The applicator pad is a small, hand-held disc usually made of dense, soft foam or microfiber. It is used to apply thin, even layers of wax, sealant, tire dressing, or leather conditioner. Its porous structure absorbs just enough product to spread it smoothly without waste. Using a dedicated applicator ensures you don’t use the same tool for your greasy tire dressing and your delicate paint wax. They are inexpensive and often considered disposable after heavy use.