Head-Mechanics

MLS ( Multi Layer Steel) 

The MLS gasket is comprised of 3 layers of Stainless Steel up to .051" thickness, above .051" 4 or 5 layers are used.
Cometic uses Stainless Steel for increased strength, it's ability to rebound and also corrosion resistance.
The outer layers of the gasket are embossed and coated on both sides with a Flouroelastomer rubber based material ( Viton) designed to meet the demands of a variety of harsh sealing environments, load conditions and surface finishes. The Viton coating is heat resistant to 250C or 482F.

The centre or shim layer of the gasket is comprised of an uncoated Stainless Steel layer which can be varied to accommodate multiple thickness requirements. The MLS gasket is ideal for aluminium heads to cast blocks and aluminium heads to aluminium blocks.
The composition of MLS will also withstand the shearing forces created by aluminium heads on cast iron blocks. No re-torquing is necessary. By design the MLS gasket promotes an even torque load across the sealing surface allowing for measurable reduced bore distortion.

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