Depending on the type of wall paint.
Can you paint vinyl wall decals.
Therefore spray paint that specifically adheres to plastic should work for this project.
If on the other hand you are using an oil based paint not common in most areas nowadays you can apply vinyl graphics or decals or stickers within a week or so as oil paints dry from the outside in.
When making signs using vinyl letters and logos we always use oil based paints as they last longer.
Vinyl decals are easy to apply and painting requires a lot more work for not a whole lot of difference.
A lot can go wrong with painting especially if you re not an experienced painter.
This can ruin the wall by removing spots of paint and resulting in a patchy look.
There are some specific types of paint that work best for flexible vinyl.
But you must weight costs labor involved and benefits if any.
Urethane modified acrylic paint also works well.
Sticker adhesives are often too powerful to remove without the help of powerful cleansers that can damage underlying surfaces.
Fabric spray paint is more flexible than any other spray paint but it is more expensive.
This diy project is done with plastic adhering spray paint.
Unfortunately decals are not suited for adhesion and require specific preparation before they will accept paint.
However sometimes the paint under the decal sticks to the vinyl when it is removed.
If you need to paint but are unable to remove existing decals from the surface you are working on paint over the stickers using the proper techniques.
Paints that are mostly acrylic based are the best as they stick to the vinyl better without cracking or chipping off.