Why the manufacturers of 303 Aerospace Protectant™ don’t make it available in every big box and hardware store in the country, astounds me. It is the absolute best way to give new life to vinyl. Around the house that includes vinyl windows, doors, shutters, patio furniture, spa and pool covers and the like. To illustrate 303's extraordinary ability, take a look at my in-law’s sun-bleached front door before an application of 303, which consists of spraying it on and wiping it off with a soft cloth.
Fifteen minutes later, the door looks almost new. And no, when 303 dries, the vinyl does not revert back to the original faded look.
With very sun damaged vinyl, a second coat in a few weeks would be advisable. Because 303 is basically a sun screen for your stuff (it has an SPF of 40) it will help prevent further damage, and it repels dust, soiling and staining too.
As far as finding 303, you can search for retailers via their website. Although not cheap (a 16 ounce bottle will set you back about 15 bucks) it’s much more cost effective than replacing those faded shutters and doors. Other uses for 303 include vinyl & leather car interiors, plastic bumpers, vinyl car roofs and tires, to name just a few. Oh, and if you think Armor All® would work just as well; it doesn’t. Not even close.