Premium 20mm Butyl Rubber Vial Stoppers
Ensure maximum sample integrity with our laboratory-grade 20mm butyl rubber stoppers. Engineered specifically for standard 20mm glass vials, these stoppers provide an exceptional, airtight seal that protects sensitive formulas from contamination, moisture, and gas permeation.
Key Features
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Perfect Fit: Designed for standard 20mm finish glass serum vials.
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High Chemical Resistance: Low permeability to air, gases, and moisture.
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Resilient Elastomer: Maintains a tight seal after multiple needle punctures.
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Sterilization Ready: Autoclave-safe material suitable for sterile applications.
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Pure Formulation: Low extractables to preserve compound purity.
Ideal Applications
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Pharmaceutical compounding
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Long-term sample storage
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Lyophilization (freeze-drying)
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Biologics and culture media
