28-1032-1-0214 is a part made by Concord, Inc. It is a rubber storage tank lining. The rubber used in this product is a high-grade EPDM rubber that is highly resistant to harsh chemicals, abrasion and ozone. The lining consists of four layers: an inner 0.2 mm EPDM liner, an additional 0.3 mm EPDM layer, a 0.8 mm glass reinforcement layer and a 0.3 mm EPDM outer layer. This product is designed for use in a variety of industrial applications, including as a liner for fuel and oil storage tanks, water tanks and chemical holding tanks.