How about all these: • Car, truck – all exterior surfaces, especially bugs, road film and road salt. • Brake dust and road salt & gunge from rims, tires • Boat - all exterior surfaces • ATV • Dirt bike • Farm & Heavy Equipment • RV's, Campers, including Trailer Park units – all exterior surfaces • Cottage- Composite decks, Concrete Patios, Outdoor Furniture, Siding, Soffits, Windows etc. • House siding, soffits and fascia, stucco, windows etc. • Concrete floors, sidewalks etc. • Lawn & garden furniture and equipment • BBQ • Pretty much any outdoor metal, painted, rubber, or plastic, surface • ???