To reduce the bore distortion and withstand greater cylinder pressures, more and more cylinder head gaskets are designed using this kind of composition.
Elastomeric head gasket is a special gasket utilizes a steel core plate with molded in place ACM, VMQ or FKM rubber beads to seal oil and coolant passages.
Double Steelbestos
AFM (Asbestos-Free Material) gasket or Composite gasket is made using an old technology.