For leather or cloth I prefer leather Magic.

https://leathermagic.com

I'm not too impressed with their plastic or vinyl line. Their products have the advantage of good color matching but don't seem as durable as the SEM line. They are water-based so they are easier to use.

https://www.semproducts.com/products/refinish/flexible-coatings

The disadvantage of the SEM coatings is colors limitation.

Both of them require some fairly extensive preparation to do the job properly.

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