Neoprene Rubber Corks are versatile, chemically resistant stoppers used to seal laboratory glassware such as test tubes, flasks, bottles, condensers, burettes, and reaction vessels. Made from synthetic neoprene rubber, these corks offer excellent chemical stability, flexibility, and durability, making them suitable for a wide range of scientific, industrial, and educational applications. Unlike natural rubber or traditional cork stoppers, neoprene rubber corks resist degradation from oils, acids, alkalis, and most laboratory solvents. They maintain their shape under compression and provide an airtight seal, which is critical for experiments involving volatile substances or sensitive reactions. Available in solid or bored (one- or two-hole) configurations and a wide range of standardized sizes, these corks ensure compatibility with various lab glassware and apparatus.
Feature of Neoprene Rubber Corks
- Easy distinguishable blue color for lab use
- Flame resistant & Autoclavable
- Tolerates weathering & ozone
- Working temp. are 50 to 120°C
- Has excellent low gas permissiblity
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