These stoppers are made of translucent silicone. The stoppers guarantee absolute impermeability, even when the edges of the tubes or glass, metal or plastic containers are imperfect.

• Autoclavable
• Outstanding sealing and protection from the outside
• Biologically neutral, good chemical resistance
• Resistant to ageing, ozone and repeated sterilisation
• Temperature resistant from –60 to +220 °C (up to +250 °C for short periods)

The stoppers can be punctured and resealed after sampling, even after several uses.

Resistant to temperatures from -60 to +220 °C (up to +250 °C for short periods)