Do wall vinyls cover painted walls?

This was one of the 'must have' items on my list when I first started up Squark Interiors. So many times I have had to paint over dark red walls with mulptiple layers of paint in my past renovation projects. I can assure you that Squark Interior products will overlay coloured walls without the colour showing through them. I can not guarentee that all products you buy will do the same thing, so please check with the supplier before you purchase the product.