Cork is an amazing natural material, with following characteristics :
- Cork is made of vegetal cell tissues, with a density of 40 million microvoids /cm³
=> Particularity : its composition is similar for 95% with air.
- That makes it a light and elastic material.
- Insulating : Thermal Conductivity Coefficient K = 0,035,
equivalent to polystyrene and glass wool,
effective insulation depending on thickness and density.
- Temperature-proof : the insulating power of cork against hot and cold remains operational between -150 °C & +130 °C.
- Low capillarity.
It can therefore be washed, with detergent or hot water.
Not producing flames, no toxic smoke emissions if burning away.
- Imputrescible if remaining dry.
- Certified for contact with food, after adequate treatment.
- Is not attacked by insects, rodents and termites.
- Insulating against sound, vibrations, and electricity.
- Anti-static, it does not retain dust.
Cork is best known for being used since centuries as bottle stoppers to preserve wine and champagne.
It is also used as a very effective construction material, thanks to its insulating properties.
However, based on all these amazing characteristics, cork materials are also currently used in many high-tech applications, such as high-speed trains, airplanes, space rockets and satellites, nuclear submarines, sailing boats, etc …