The test tube cap stopper is an essential laboratory accessory designed to provide a tight, secure seal for both plastic and glass test tubes. These stoppers prevent contamination, evaporation, and spillage during sample handling, centrifugation, incubation, or storage.

Constructed from medical-grade rubber, silicone, or polyethylene, test tube cap stoppers ensure a flexible yet firm grip, maintaining the integrity of the samples inside. They are compatible with a wide range of test tube sizes (e.g., 12×75 mm, 13×100 mm) and are suitable for use in clinical, diagnostic, and research laboratories.

Whether you’re storing blood samples, chemical reagents, or biological specimens, a quality test tube cap stopper guarantees airtight protection and temperature resistance to maintain sample stability.

Key Features of Test Tube Cap Stopper:

Provides secure, leak-proof sealing
Made from chemical-resistant materials (silicone, PE, or rubber)
Available in multiple colors and sizes for easy identification
Suitable for centrifugation, incubation, refrigeration
Reusable and autoclavable options available
Easy to apply and remove without damaging the test tube

Applications:

Sealing blood and urine sample tubes
Preventing contamination in molecular biology and microbiology labs
Safe sample storage during transport
Use in centrifugation and thermal cycling processes
Ideal for diagnostic labs, hospitals, and scientific research facilities

At TPT Medical, we supply test tube cap stoppers that meet laboratory safety standards and ensure consistent performance. Choose from a variety of sizes and colors to match your workflow and improve sample organization.

Whether your lab requires stoppers for short-term storage or long-term preservation, our test tube cap stoppers deliver reliable protection every time.