Hmmm. I've never heard that use for revêtement.

I looked it up in my Multi Québec (a dictionary that has Québec French) and my Larousse (a dictionary that has France French) and that definition does not appear.

Mind, you my Larousse is the Petit (small) Larousse with only some 100,000 words so it could be simply missing that definition. Where did you find it?

In Québec, revêtement, is an outercovering, or something you put over something else. For example, a wood floor will have a revêtment of hard laquer to keep it from getting damaged. A cake will have a revêtment of icing and a banana a revêtement of yellow peel. The cover you put over your umbrella is a revêtement.