”  I purchased this product last summer. It has worked amazingly well. Used on plastic parts on a 2001 Volvo Tractor/truck. Large mirrors were a grey color. They are now Black amazing. Been sitting out it’s whole life.I used on tire also.They look great. Will it stop dry rot only time will tell.
Used on ATV looks new Used Blak on tires and black plastic. I used Gloz on camo have washed a couple of times and it still looks like new. Put the Blak on 6 tires on my 5th wheel trailer. They look new, but primary reason was to stop or slow down dry rot from sitting in sun. They look great only time will tell about the protection from sun and ozone.  I am pleased! 

              Bud