ATHENA (MLS) Multi Layer Gasket

Material

ATHENA MLS gaskets feature a combination of 3 to 5 layers made of different types of raw materials. The outer and inner layers are designed to perform at higher compression levels than stock configurations, with varying steel types based on engine requirements. These gaskets provide an even torque load across the sealing surface to compensate for any bore distortion, making them ideal for both aluminum heads to cast iron blocks and aluminum heads to aluminum blocks.

Manufacturing Process

Athena New Design MLS Head Gaskets are crafted from high-grade 301 stainless steel full hard material. Each layer is individually formed using state-of-the-art laser cutting and embossed with an optimized formation process. Two head gasket layers undergo a stress-relieving process to significantly reduce embossment forming induced stress. A proprietary two-part polymer coating is applied after the stress-relieving process, ensuring uniform coverage of the outer layers and providing a micro seal for engine coolant and oil fluids. These gaskets are tested and analyzed on engine dynos for endurance performance.

Gas Stopper Technology

Gas stopper technology is a key design feature of racing MLS head gaskets. The stainless-steel stopper layer includes an "active fold" that delivers a high-pressure seal around the cylinder bore when tightening the cylinder head. This gas stopper is located around the combustion chamber, allowing the cylinder head and engine block to clamp tighter and preventing gas leaks from the combustion chamber. It also helps avoid component distortion by quickly equalizing the temperature of 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 ensures uniform coverage of the outer layers, providing a micro seal for engine coolant and oil fluids. The first layer is a high-temperature compound that conforms to fill engine block deck surface and cylinder head surface irregularities, sealing surface finishes up to 60 Ra. The second layer releases easily and will not stick to mating surfaces during engine disassembly.

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