Gyproc® MR (Moisture Resistant) Consists of an aerated gypsum core with special water repellent additives encased in and firmly bonded to, strong moisture-resistant paper liners that are green. Product Application Moisture-prone internal wet areas across Residential/Commercial/HealthCare/Hospitality Ceilings in dry areas where long lasting ceilings are needed. Drywalls & Ceilings in other areas which are prone to moisture contact Ceilings in Bathrooms & Kitchens