Osburn 48 X 24 X 1/2 Micore 300 Mineral Fiber Boards

Versatile and sturdy with a nearly endless list of applications, passive fire protection from SBI is simply peerless. This Micore-300 Mineral Fiber Insulation Board features slag wool mineral fiber construction for extra safety and durability. This pack contains four exceptionally high-quality Micore-300 boards. These protective insulating boards make a great addition to homemade stove boards, fireplace framing, and more. SBI’s high-quality materials are among the finest in the industry, so you can’t go wrong with this stellar Mineral Fiber Insulation Board from SBI.