Lightness: Around 80% of the cork volume consists of gaseous matter, which makes cork extremely light and buoyant.

Elasticity and Resiliency: The cellular membranes are very flexible, making the cork compressible and elastic. These characteristics and other qualities largely explain how cork has become indispensable for stopper manufacturing. When cork is subjected to strong pressure the gas in the cells is compressed and reduces considerably in volume. When released from pressure cork immediately recovers its original volume.

Impermeability: The presence of suberin (a complex mixture of fatty acids and heavy organic alcohol) renders cork impermeable to both liquids and gases. As a result, it does not rot, and may therefore be considered one of the best seals available.

Insulation: Cork has one of the best insulating capacities, thermal and acoustical, of all-natural substances. This is due to the fact that the gaseous elements are sealed in tiny, impermeable compartments, insulated one from the other by a moisture-resistant material.

Fire retardant: Cork is a natural fire retardant as it does not spread flames and does not release toxic gases during combustion.

Durability: Cork is also remarkably resistant to wear and has a high friction coefficient. Thanks to the honeycomb structure, it is less affected by impact and friction than other hard surfaces.

Hypoallergenic: Cork does not absorb dust and, consequently, does not cause allergies nor pose a risk to asthma sufferers.

Biodegradable, recyclable, and renewable: Cork is a natural raw material 100% biodegradable, recyclable, and renewable.