At work, I recommend to people to use Mothers Protectant. Spray it on a microfiber or cotton terry applicator, or directly on the surface and wipe. Buff off any excess with a dry cotton terry towel.
You can get it at Ace or True Value Hardware, many Car Quest or NAPAs, O'Reilly Auto, and online.
Preserves and protects for 30 days! Mothers® Protectant is a penetrating UV blocker, effective on rubber, vinyl, plastic and fiberglass. Constructed to recondition and maintain the original condition and appearance of dashboards, bumpers, trim, tires and more. Protectant isn’t an oily surface-coating film. It’s an ozone and smog resisting, UV shielding penetrant — a preservation agent that works on just about any uncoated plastic or rubber.
#05316, 16 oz. #05324, 24 oz.