Mineral Wool elbows are a high temperature insulation. They can be used in applications with temperature ranges from ambient up to 1200°F. Mineral wool has a high fiber density which aids in excellent thermal control. Mineral wool elbows can be fabricated as Long Radius (LR) , Short Radius (SR), or Socket Weld (SW) 90's and 45's. We distribute for major manufacturers such as: CertainTeed, Johns Manville, Owens Corning, and Rockwool.