Fel-Pro Performance oil pan gaskets offer three types of construction. Some are made from Felcoid/Plus, a special fiber core with a latex rubber coating. For applications where a tougher gasket is needed, others have a solid steel core wrapped with rubber coated fiber facing material. For newer engines, there are one-piece molded silicone-rubber gaskets specifically designed to handle their special needs. Some of these gaskets have a solid steel core, while others have a rigid carrier-type design. Fel-Pro oil pan gaskets come with an anti-stick treatment for easy removal.