Crystal Coarse is a ready mixed, flexible, acrylic coating ideal for covering and decorating suitably prepared interior or exterior surfaces. Crystal Coarse is an attractive granular texture finish ideally suitable to modern construction while maintaining a traditional look. Crystal Coarse is a pre blended, acrylic texture that boasts superior trowel ability and its unique formulations allows easy trowelability. Crystal Coarse is specially designed with the unique BIS formulating system giving it superior mould and dirt resistance.