Requirement of Gasket:

Gaskets are used to provide a tight fitting joint between two surfaces.For example, the joint between cylinder head and block.

1. Conformity: - The gaskets must be able to conform to the mating surfaces which may have roughness or warpage.

2. Impermeability: - The gaskets must be impermeable to the fluid it is expected to seal.

3. Resistance to chemical attack: - the gaskets should be resistant to the chemicals with which it may come in to contact.

4. Resistance to operating conditions: - The cylinder head gasket should be resistant to widely fluctuating and pulsating internal pressures and temperatures and exposure to flame.

5. Provision of apertures: - The gasket must have apertures for any studs, bolts, opening etc.