SEM Paints 15233 Color Coat, Gloss Black

First time using this spray. Repair rear deck board black color fabric faded on my Mercedes. Found this technique from YouTube Mercedes restoration.

I've used this brand before but only for vinyl and leather and I thought it would do a better job on carpet. I have used other brands on carpet and I believe that brand was duplicolor and it seemed to do a better job especially at lasting longer. It seemed to look nice for a good number of months even in high traffic areas but this SEM but I just did was just used two times for some very light traffic and it already looks faded and worn and no longer nice and deep black whereas the other brand seem to last months before it looked this way. I paid extra for this brand because I know they have high quality products but this on black carpet was not very impressive.