The GISCOM Solid Glass Stopper is a precision-engineered sealing component designed for use with standardised jointed laboratory glassware. Made from premium Borosilicate Glass 3.3, it provides a secure, airtight closure for reagent bottles, flasks, cylinders, and chemical storage containers. Its durable, solid construction ensures enhanced mechanical strength and long-term reliability in both routine and demanding laboratory environments.
Key Features
- Manufactured from high-quality Borosilicate Glass 3.3 for exceptional clarity and durability
- Solid structure provides maximum mechanical strength and long service life
- Flat head design ensures easy grip, smooth handling, and safe insertion/removal
- Precision-ground joints provide airtight, leak-free sealing
- Resistant to thermal shock, chemical corrosion, and aggressive laboratory reagents
- Fully compatible with standardised jointed laboratory vessels
- Non-reactive surface maintains sample purity and prevents contamination
- Ideal for long-term storage of sensitive chemicals and solutions
Material Specifications
- Material: Borosilicate Glass 3.3
- Thermal Properties: Low thermal expansion (3.3 × 10⁻⁶ /°C), excellent resistance to rapid temperature fluctuations, suitable for autoclaving and controlled heating
- Chemical Properties: Highly resistant to acids, alkalis, organic solvents, and corrosive vapours. Non-porous and stain-resistant
- Mechanical Properties: Strong, solid construction for demanding applications. Ground joint ensures precision fit
- Standards Compliance: Manufactured according to ISO/DIN standards for interchangeable laboratory glassware
Technical Specifications
- Available Joint Sizes: As per the standard size table
- Design: Solid body, flat head, precision-ground joint
- Tolerance: Standardised joint tolerances for seamless interchangeability. Not applicable for volumetric calibration
- Accessories Included: Supplied as a stopper only (no additional components required)
Handling & Precautions
- Insert and remove gently to protect the joint and avoid unnecessary stress
- Clean using mild laboratory detergents; avoid abrasive tools
- Rinse thoroughly after contact with strong reagents
- Autoclavable; allow gradual heating and cooling to prevent thermal stress
- Inspect regularly for chips, cracks, or wear; replace if damaged
- Do not use if the ground joint surface shows visible abrasion
Applications
- Suitable for reagent bottles, storage flasks, volumetric flasks, and jointed cylinders
- Widely used in analytical, research, academic, and industrial laboratories
- Ideal for pharmaceutical, chemical, biotechnology, environmental, and QC/QA labs
- Ensures safe storage and handling of chemicals, reagents, standards, and sensitive solutions
- Supports daily workflows in sample preparation, chemical storage, and analytical processes
