I had my buddy come over with his 10 year old SUV. Black! Can you fix this for me? Long story short after 8 hours of everything, I pulled my at least 8 year old Wolfgang sealant 3.0 from the collection of dozens of sealants, wax, etc... Gave it a good shake, still seemed fine, not clumpy, not watery. Wow, I forgot how good this stuff makes a vehicle look. I used blue pad dual action polisher as my old hands are too fried to manually do it. Let it dry for 45-60 minutes and wiped it off ( very easy) with good microfibre towels. (Eagle edgeless 500) Looks pretty good for a ten year old neglected SUV. I bet there are lots of equally good or even better sealants, but this left a very smooth, reflective surface. Good depth, great clarity. Most people would not be disappointed with the results. Prep is important for best results. Good luck
