Plastic Stopper, PP

GISCOM Plastic Stoppers are precision-moulded laboratory closures designed for securely sealing plastic and glass tubes, bottles, and laboratory vessels. Made from high-quality polypropylene (PP), these stoppers provide reliable containment, prevent contamination, and minimise evaporation or leakage. They are essential components in routine laboratory operations, storage, and transport of samples across research, pharmaceutical, and industrial environments.

Key Features

• Manufactured from high-grade polypropylene (PP) for durability and chemical resistance
• Leak-resistant fit ensures secure sealing of laboratory containers
• Ergonomically designed head for easy insertion and removal
• Lightweight yet mechanically strong for repeated use
• Non-reactive surface suitable for contact with most laboratory reagents
• Uniform molding ensures consistent dimensions and reliable performance
• Available in multiple sizes to suit various tube and bottle openings

Material Specifications

• Material Type: Polypropylene (PP)
• Properties: Excellent chemical resistance to acids, bases, and aqueous solutions. Good thermal stability for standard laboratory conditions. Mechanical strength with flexibility for tight sealing. Non-toxic and non-contaminating
• Standards: Manufactured in compliance with international laboratory plasticware quality practices (ISO-based manufacturing systems)

 Technical Specifications

• Available Sizes: Multiple stopper diameters and stem sizes to fit common laboratory tubes and bottles
• Design: Plug-type stopper with ribbed or threaded stem for enhanced grip and sealing
• Tolerance: Precision-molded for consistent fit and dimensional accuracy
• Accuracy / Calibration: Not applicable
• Accessories Included: Supplied as standalone stoppers; compatible with standard laboratory vessels

Handling & Precautions

• Ensure the correct stopper size is selected for the container to avoid leakage or stress cracking
• Clean before first use using mild laboratory detergents and rinse thoroughly
• Suitable for routine laboratory temperatures; not recommended for high-temperature autoclaving unless specified
• Avoid prolonged exposure to strong oxidizing agents
• Store in a cool, dry place away from direct sunlight to maintain material integrity

Applications

• Used in research laboratories, pharmaceutical production units, chemical labs, and academic institutions
• Ideal for sealing test tubes, reagent bottles, sample containers, and storage vessels
• Commonly used in QC/QA labs for sample retention and contamination control
• Supports daily lab workflows involving sample preparation, short-term storage, and safe transport