Sun board or Foam board is a strong, light, and easily cut sheet material used for the mounting of vinyl prints, as backing in framing. It usually has three layers — an inner layer of polystyrene foam and a white clay coated paper on the outside.
Sun board or Foam board is a strong, light, and easily cut sheet material used for the mounting of vinyl prints, as backing in framing. It usually has three layers — an inner layer of polystyrene foam and a white clay coated paper on the outside.