Description
| Catalog No. | Size |
| 19814/1 | Small |
| 19814/2 | Big |
Silicone Rubber Cork is a high-quality tapered stopper designed to securely seal laboratory glassware, filtration flasks, tubes, and bottles. Made from premium silicone rubber, it offers exceptional chemical resistance and long-term durability. Its stable performance under high and low temperatures makes it an indispensable component for reliable lab sealing applications.
Key Features
- High-grade silicone rubber for excellent flexibility and sealing integrity
- Resistant to a wide range of laboratory chemicals, reagents, and solvents
- Withstands repeated heating, cooling, and sterilization cycles
- Non-reactive, non-toxic, and suitable for sensitive laboratory environments
- Durable structure that resists cracking, deformation, and aging
- Smooth tapered design for secure, leak-free glassware closure
- Available in multiple sizes (Small and Big) for universal lab compatibility
Material Specifications
- Material: Premium laboratory-grade silicone rubber
- Thermal Properties: Stable under high-temperature and low-temperature exposure; supports autoclaving
- Chemical Resistance: Withstands acids, alkalis, solvents, and most lab reagents
- Mechanical Properties: Excellent elasticity, compression strength, and rebound
- Standards: Produced in accordance with general laboratory rubberware standards (ISO / DIN compliant)
Technical Specifications
- Available Sizes: As per the standard size table
- Design: Tapered cylindrical stopper with central perforation (optional depending on model)
- Tolerance: Standard molded stopper tolerances ensuring consistent fit
- Accessories: Not required; compatible with standard test tubes, flasks, and filtration equipment
Handling & Precautions
- Clean using mild detergents; avoid harsh organic solvents for prolonged exposure
- Autoclavable; safe for repeated sterilization within recommended temperature limits
- Do not expose to open flames or temperatures beyond manufacturer guidelines
- Store in a cool, dry place to maintain elasticity and prevent ageing.
- Replace if cracks, deformations, or hardening occur over long-term use
- Ensure correct size selection to maintain airtight performance
Applications
- Ideal for sealing filtration flasks, test tubes, reaction vessels, and sample containers
- Widely used in chemical, biological, and pharmaceutical laboratories
- Suitable for QC/QA labs, research institutes, and academic laboratories
- Effective for processes requiring stable sealing under temperature variations
- Useful in solvent handling, microbial culture work, and routine lab testing
