APG’s Graphite Laminate PSM has a 0.1 mm thick perforated stainless-steel insert. The insert aids material handling properties and increases the blow-out resistance. The insert is mechanically bonded to pure exfoliated graphite and therefore does not rely on adhesive. Stable physical properties over the whole temperature range. This material is suitable for hot water and steam at high temperatures up to 842°F (450°C). To prevent the gasket material from sticking to the flange surface (even at high temperatures), the graphite surface can be given a non-stick coating at the customer’s request. With this process, the gasket material’s surface is coated and not impregnated.