MLS (Multi-Layer Steel) head gaskets
MLS gaskets are comprised of three layers of Stainless Steel. COMETIC uses Stainless for increased strength, its ability to rebound and corrosion resistance. The outer layers are embossed (beaded) and coated on both sides with Viton®, a fluoroelastomer rubber-based material designed to meet the demands of harsh sealing environments, load conditions and surface finishes. The Viton® coating is heat resistant to 482°F. The center shim layer is comprised of uncoated Stainless, which can be varied to accommodate multiple thickness requirements. MLS gaskets are available in standard-duty (up to 10# boost) and extreme duty “HP” turbo / nitrous configurations.

• Ideal for both aluminum heads to cast iron blocks
• Ideal for aluminum heads to aluminum blocks
• Withstands shearing forces created by aluminum heads / cast iron blocks
• No re-torque is necessary
• Promotes an even torque load across the sealing surface, allowing for measurable reduced bore distortion.
• Available thickness: .025”, .027”, .030”, .036”, .040”, .043”, .045”, .054”, .067”, .078”, and .120”

CFM-20
A perforated steel core with an elastomer surface is ideal for head gaskets allowing heat to be drawn evenly across the gasket surface while providing maximum sealing characteristics when exposed to coolants and oils.
• Available thickness: .043”, .051”, and .059”