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 perform at higher compression levels than stock configurations, with the type of steel varying based on engine requirements. These gaskets ensure an even torque load across the sealing surface to compensate for any bore distortion, making them suitable for both aluminum heads to cast iron blocks and aluminum heads to aluminum blocks.

Manufacturing Process

Athena MLS Head Gaskets are crafted from high-grade 301 stainless steel. Each layer is precisely formed using advanced laser cutting technology and is embossed through an optimized formation process. Two layers undergo a stress-relieving process to minimize embossment-induced stress. A proprietary two-part polymer coating is applied post-stress relief, ensuring uniform coverage of the outer layers and maintaining a micro seal for engine coolant and oil fluids.

Athena MLS gaskets are rigorously tested on engine dynamometers and endurance performance evaluations.

Gas Stopper Technology

This 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. Positioned around the combustion chamber, the gas stopper allows for tighter clamping of the cylinder head and engine block, preventing gas leaks and reducing 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. The first layer is a high-temperature compound that conforms to fill surface irregularities of the engine block deck and cylinder head, 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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