One thing we should mention is that it’s important to clean the vinyl you’ll be painting with acetone before applying the paint. Apply in light coats, allowing each to dry before applying the next. High-use items like chairs should be allowed to dry for up to weeks before use. ...
You should also apply one or two thin coats of primer before painting. I think Montana makes one. Once the first coat is dry, spray another thin coat. Once dry, then spray in light coats until you get the coverage you want. I spray painted over chairs that had a shiny painted finish...