Rubber Stopper D2 20mm

The 20mm Sterile Rubber Stopper D2 from VialShop provides a dependable sealing solution for pharmaceutical, biotechnology, and laboratory applications requiring maximum container integrity and sterility. Manufactured from premium pharmaceutical-grade bromobutyl/chlorobutyl rubber, this stopper offers low permeability, excellent chemical stability, and reliable protection against moisture, oxygen, and external contamination.

Designed for compatibility with standard 20mm neck injection vials, the D2 stopper creates a secure hermetic seal when combined with aluminum crimp seals. Its optimized elastomer formulation provides excellent elasticity and resealing capability after multiple needle punctures, ensuring safe handling and extended sample protection.

The Sterile Rubber Stopper D2 20mm is suitable for aseptic pharmaceutical filling, injectable drug packaging, biotechnology manufacturing, diagnostic laboratories, and research environments where consistent sealing performance is essential.

Key Features

Pharmaceutical-Grade Butyl Rubber: Manufactured from high-purity bromobutyl/chlorobutyl rubber for superior chemical resistance, low extractables, and excellent barrier properties.

Sterile & Ready to Use: Supplied pre-sterilized and suitable for cleanroom, pharmaceutical, and laboratory workflows.

Secure Hermetic Sealing: Provides a reliable airtight barrier to protect sensitive contents from contamination, oxidation, and moisture.

Excellent Resealability: Maintains sealing performance after repeated needle penetrations, supporting multi-dose vial applications.

20mm Vial Compatibility: Designed for standard 20mm crimp-finish glass injection vials and compatible aluminum sealing systems.

Technical Specifications

Common Applications

Injectable Pharmaceuticals:
Used for sterile injectable medications, peptide products, vaccines, biologics, and other pharmaceutical formulations.

Laboratory & Research:
Ideal for research samples, analytical standards, reagents, and controlled laboratory materials.

Diagnostic Applications:
Provides secure protection for diagnostic solutions, reference materials, and laboratory testing products.

Biotechnology & Pharmaceutical Manufacturing:
Suitable for aseptic filling lines, pharmaceutical production facilities, and biotechnology research requiring sterile vial closures.