Updating tile wallboard
While vinyl covered wallboard was in style many years ago, that style has gone away and people want a more modern look.
Sometimes removing the wallboard and renovating the entire room is not in the budget.
Plastic tile paneling is inexpensive and durable but it does not fit every decor.
While removing it can be expensive, time consuming and messy, it's not your only option.
Let the primer dry completely according to the directions on the label. Apply a second thin coat of primer and let it dry completely. Some primers work best with oil-based paints and other are better suited to latex, so make sure you read all of the labels before choosing your primer and paint.
Use an edging brush first, and then apply a thin coat of paint with a long-handled roller.
Sponge on the solution and then rinse off with pure water.
Alkyd primers have superior adhesion, so read the label and choose one that is specifically formulated to adhere to slick surfaces like plastic.
Normally you would not want to put any sandpaper onto the wall.
However, it is important that the vinyl covering be "roughed" up a little bit in order for the paint to adhere to the slick surface. A piece of 80 grit sandpaper wrapped around a block of wood will work. One of the problems that many people have when they try to paint over vinyl covered wallboard is that they put the paint on over the wall while it still has some dirt, film or residue.
You just want to take the shine off of the plastic and give the primer a slightly rough surface to adhere to.
Tape off the ceiling where it meets the walls with painter’s tape.