Two types of Head Gasket

One is a composite structure of metal asbestos pad, with asbestos as a matrix outsourcing copper or steel skin, it has good elasticity and heat resistance, can be used repeatedly. However, the strength is poor, the thickness and quality are not uniform, so it is used more in the previous old car, and later because of the wide application of direct injection turbine engine technology.

The other is made of solid metal sheet, this cylinder pad is made of a single steel plate, made of elastic ridges at the seal, by the elasticity of the ridges and the role of heat-resistant sealant to seal, the advantage is high strength and good sealing effect.