Crown Walls & Ceilings Matt Emulsion Crown's most popular interior wall and ceiling paint; Walls & Ceilings Matt Emulsion provides a rich, non-reflective finish with no surface shine. Offering excellent versatility and complete coverage, this water-based paint can be applied throughout your entire home including living rooms, dining rooms, bedrooms and hallways. Enhance your living space today and draw inspiration from the beautiful palette of highly-pigmented colours available.