Length: 1200mmWidth: 600mmDensity: 160kg/m³Weight/m²: 8kgWeight: 5.76kgFire Rating (Reaction to Fire): A1(Non-combustible)Fire Protection (Resistance to Fire): 120minutes50mm Rockwool Ablative Coated Batt is intended to act as an air seal barrier to reinstate the fire resistance and acoustic performances of concrete floors, masonry walls and dry wall systems when voids have been created for the passage of services. This includes pipes made of plain or stainless steel, cast iron, copper, polypropylene, high density polythene, PVC and ABS along with all sheathed cables up to 80mm and supported cable bundles up to 100mm. Ablative Coated Batts can also be used as a head-of-wall barrier to extend the fire resistance and acoustic performances of drywall or masonry walls that finish at suspended ceiling height, up to the concrete soffit above.The tests have proved the capability of a single 50mm Batt to provide up to 2 hours fire resistance integrity, insulation ratings are dependent upon the service penetration.