The PVC material may be used for limited applications. They are suitable for temperatures up to 140°F and in the presence of certain chemicals, such as concentrated acids, only at lower temperatures. The shields are a three ply lamination with an inner core of non-woven spun cloth interfaced between two sheets of PVC film. These shields are suitable for installations in chemical processing industries with less hazardous chemicals at low temperatures and pressures. Food processing and waste water treatment facilities are typical applications