As above, I've always used 303. Armor-all is heavy into silicone so makes things look shiny and wet but is greasy and doesn't soak in or protect, 303 does. Coat it with sprays, let it soak, add more rub in, a day or two later spray again if it has dry spots, a sign it has soaked up perhaps. Use on plastic frame too, go nuts. Then you'll also have a dash outline on the concrete when it rains as it waterproofs and repels where sprayed.