Its a polymer resin, doesn't take much.
Honestly 10cc is all you need. I buy the 20 to do other peoples cars.
Take off the wheels and do them inside out too.
This is all done after decontaminating and polishing the paint. A couple of wipe downs with a paint prep(optimum paint prep/ Eraser, etc.) and away you go.
Wipes on and it flashes, wipe down the high spots and done.
Best thing I ever did.
Get sum on da Regal