These scented formats are made with a variety of fragrance products such as: Scented Coatings that emit scent automatically, Scratch & Sniff (Rub & Smell) which needs activation, scented stickers/labels, and Snap & Burst flap formats that you normally see used for fragrance Ads in magazines.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  prewash(Noun) A quick rinse given to objects before they are washed properly. 2  prewash(Verb) To rinse something before washing it properly.
These metal treatments are most typically applied in a multi-stage spray washer. Pretreatment chemicals remove organic and inorganic soils (oil, grease, polymers, soaps, oxides and particulate) from metal parts that would prevent powder coatings from mechanically bonding to the substrate.