Light (50% of its volume is air), elastic. High resistance to moisture and gases. Extremely resistant to abrasion. Thermal and acoustic insulator. 30-year lifespan. Best for wine aging.
High-grade uniform structure of natural cork with good mechanical characteristics. Some grades of natural cork are sealed and filled with cork powder to improve their functionality and visual appearance. A glue based on water or natural rubber is used to fix the dust in the pores.
Low-cost alternative to natural corks. Made from plastic compounds designed to look and "pop" like natural cork, but without the risk of TCA contamination.
Sughera is a mix of the finest cork granules and a special agglomerating agent. No glue. No odor. Perfectly sanitized, prevents contamination by color and dust. Extremely strong. No crumbles and breaks.
Economical alternative to natural cork. Excellent sealing characteristics. Easy extraction. A mix of small granules of natural cork glued together. The food glues, microspheres, and synthetic agents are food-safe, yer not ideal to be in contact with the delicate flavors that many drinks have.