The 8 lb ceramic wool (1" x 4') is designed for insulating maple syrup evaporators and other high-temperature equipment. Providing excellent thermal resistance, it helps retain heat inside the evaporator, improving boiling efficiency and energy performance. Lightweight, flexible, and easy to cut, it installs easily in various insulation areas. Sold per square foot, in a 4-foot-wide roll, with a minimum order of 4 square feet.