Should you use eggshell or flat paint when repainting your interior? This is a question we are often asked. Eggshell has been a very common sheen of paint to use on walls. However more and more we are seeing the change into flat sheen finishes. The higher end flat paints that Nuevo Painting uses can be applied anywhere in your home. If you prefer the lower sheen finish there are high quality flat finishes that can be used anywhere in your home. Even in your kitchen and bathrooms!