Hot Sale 100% non-asbestos calcium silicate board 6mm Application: Can be used in washrooms as the ceiling, partition and backer boards. Additionally, Due to the features of fire prevention, thermal insulation, mildew proof and moisture proof, Bestinboards are also applicable to places where high security is needed. Product Features: 1.Fire-retardant 2.Thermal-insulated 3.Mildew proof 4.Moisture proof 5.Sound insulated 6.Low moisture and water absorption 7.No asbestos or any other hazardous substances Insulated Interior Wall Panel