ATHENA (MLS) Multi Layer Gasket

Material

ATHENA MLS gaskets consist of 3 to 5 layers made from various raw materials, designed to operate at higher compression levels than stock configurations. The type of steel used varies based on 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 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 formed using advanced laser cutting technology and is embossed through an optimized formation process. Two of the head gasket layers undergo a stress-relieving process to minimize stress induced by embossment. A proprietary two-part polymer coating is applied post-stress relief, ensuring uniform coverage of the outer layers and preventing breaks in the coating, which helps achieve a micro seal for engine coolant and oil fluids. Athena MLS gaskets are rigorously tested on Engine Dynos and endurance performance tests.

Gas Stopper Technology

This technology is a crucial design feature of racing MLS head gaskets. The stainless-steel stopper layer incorporates an “active fold” that creates 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 between the cylinder head and engine block, preventing gas leaks from the combustion chamber and reducing component distortion through quicker temperature equalization.

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 is applied after the stress-relieving process, ensuring uniform coverage of the outer layers without breaks. 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, preventing sticking to mating surfaces during engine disassembly.

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