The ROCKWOOL 50mm Ablative Coated Batt is a mineral wool insulation product, pre- coated on both sides with a high performance ablative coating. It has been comprehensively tested as part of the ROCKWOOL FIREPRO® range of fire protection products and can be installed across a variety of services and substrates including solid walls and floors, flexible walls, multi-service penetrations, the head of wall, blank seals and face fixed applications as well as large framed service voids. The Ablative Coated Batt is tested to provide up to 4 hours fire resistance whilst also providing an excellent acoustic performance and importantly, maintaining air tightness and reducing unwanted heat losses.