Mineral wool is hydrophobic, meaning it can resist mold, mildew, and corrosion. Mineral wool elbows are made of high-temperature insulation derived from volcanic rock. Additionally, it is made of about 70% recycled material making it a sustainable product. Mineral wool elbows are highly fire-resistant and non-combustible, suited for applications up to 1200°F. Mineral wool pipe fittings can be fabricated as Long Radius (LR), Short Radius (SR), or Socket Weld (SW) 90’s and 45’s elbows. Distribution International supplies mineral wool elbows from top manufacturers such as Johns Manville, Trufit, and ICA. View our selection of long radius, short radius, and socket weld mineral wool elbows below.