Can I use spray paint to paint over existing high gloss paint?
So, you've painted your home interior with high gloss paint. Now you need to do a little touchup with a can of spray paint, and you're wondering if this new coat of paint is going to stick. Well, you can be sure of one thing: it won't stick, even if you first use a primer; that is unless you prep the surface you're going to paint.
Preparing High Gloss Painted Surfaces
Even spray paint won't stick to high gloss paint unless you first sand the surface at least lightly to remove the glossy surface. Then, you'll need to wipe off the dust from sanding. In some cases you'll need to then apply a primer.