Its generally available. I think its primarily a UV protectant. It is used often in the boating industry as a final inspection wipe because it does produce an exceptional shine. Its useable on black trim and interiors and does a pretty good job.
I've had mixed results with it - as a quick 'n clean it works really well. It does not provide the long term protection that wax does on fiberglass acting more as a frequent application type of product. It does resist fading really well but not water spotting. I have a bottle in my garage and its gets used on fibergalss/carbon parts and sometimes on the black trim on the cars.
Its a greasy product and I prefer Meguiars Vinyl & Rubber Conditioner or Back to Black. 303 is impressive - though on paint I think you'd get the same results with WD40.
