The various McFarlane gaskets are made from a military spec cork rubber, MIL-C-6183. It is created from a mixture of cork granules and rubber resulting in a flexible, durable,
high-strength material ideal for superior sealing capabilities, excellent recovery properties, conformability on uneven flange surfaces, reduced vibration and minimum distortion.
To find the right gasket for your aircraft go to Carburetor Gaskets.
Carburetor Heat and Airbox Assemblies also available.