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