ATHENA (MLS) Multi Layer Gasket

Material

ATHENA MLS gaskets consist of 3 to 5 layers made from various raw materials. The combination of outer and inner layers is engineered to withstand higher compression levels than standard configurations, with the type of steel varying according to engine requirements. These gaskets ensure an even torque load across the sealing surface, compensating for any bore distortion. They are suitable for both aluminum heads paired with cast iron blocks and aluminum heads with aluminum blocks.

Manufacturing Process

Athena MLS Head Gaskets are produced using high-grade 301 stainless steel in a fully hardened state. Each layer is precisely formed through advanced laser cutting and embossed using an optimized process. Two of the head gasket layers undergo a stress-relieving treatment to minimize stress induced by embossment forming. A proprietary two-part polymer coating is applied post-stress relief, ensuring uniform coverage of the outer layers without breaks in the coating, which guarantees a micro seal for engine coolant and oil fluids. Athena MLS gaskets are rigorously tested on engine dynos and during endurance performance evaluations.

Gas Stopper Technology

The gas stopper technology is a critical design feature of racing MLS head gaskets. The stainless-steel stopper layer incorporates an innovative “active fold” that provides a high-pressure seal around the cylinder bore when the cylinder head is tightened. This gas stopper is strategically placed around the combustion chamber, allowing for a tighter clamp between the cylinder head and engine block, effectively preventing gas leaks from the combustion chamber. Additionally, it mitigates component distortion by facilitating quicker temperature equalization among various components.

Benefits

• Superior sealing properties under high pressure conditions
• Higher elasticity and constant load resistance
• Optimized load balance
• Improved engine performance
• Longer durability

Proprietary Coating Technology

The two-part polymer coating, applied after the stress-relieving process, ensures uniform coverage of the outer layers without breaks in the coating. This technology meets the demands of various harsh environments. The first layer is a high-temperature compound that conforms to fill irregularities in the engine block deck and cylinder head surfaces, sealing surface finishes up to 60 Ra. The second layer releases easily and does not adhere to mating surfaces during engine disassembly.

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