Originally Posted by DaRoo
Well being in the sign business and doing my fair share of vinyl work, the only thing that could be prolonging it is if the Carnuba provides UV blocking. However the alcohol is not good for the vinyl but can be used to clean the surface during application prep when you are overlapping colors or first applying to the substrate. You did mention the key thing "Exposure is the culprit" in my case I don't think I will be out there waxing my signs anytime soon.
Alcohol cleans the surface first, allowing the oils to penetrate.
When cleaning before waxing some surfaces, I use mineral spirits.
As for vinyl and exposure, I have tried many products to prolong the life of my vinyl spa cover. (Totally exposed to elements)
I have found some vinyl/leather gels to work great.
Recently I used Mothers "Back to Black" and it kept the cover in great shape for several weeks. Just water cleanup. Dirt does get embedded but I don't really care. Just looking to make it look good and last longer.
My current cover is over 7 years old (first 2 years indoors) and it is almost time for a new one.
I am sold on that stuff.
I am sure it would work on vinyl decals also. (I am sure better than carnuba)
I am pretty sure it has a UV protectant.