CryoSure® Cryogenic Vial Caps — HDPE, Lavender, 200/Bag (300-3900-L20)
These CryoSure® cryogenic vial caps are engineered for reliable sealing of cryogenic vials under the demanding temperature extremes of cryostorage, supplied non-sterile in a convenient 200/Bag bulk pack. Molded from high-density polyethylene (HDPE), they deliver the toughness and flexibility needed to maintain a secure closure from liquid nitrogen temperatures through room-temperature handling. The distinctive lavender color supports easy visual identification and color-coded sample management in biorepositories and research freezers.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 300-3900-L20 |
| Product Type | Cryogenic Vial Caps |
| Product Line | CryoSure® |
| Material | High-Density Polyethylene (HDPE) |
| Color | Lavender |
| Sterility | Non-Sterile |
| Pack Size | 200/Bag |
| Country of Origin | USA |
Applications
- Replacement or spare caps for cryogenic vials used in long-term biological sample storage
- Color-coded organization of cryobanked specimens, cell lines, or frozen aliquots
- Biorepository and biobank sample management requiring visual lot or group differentiation
- Re-capping cryovials after sample retrieval and re-freezing workflows
- General ultra-low temperature and liquid nitrogen freezer storage applications
Material & Chemical Resistance
High-density polyethylene (HDPE) provides excellent resistance to aqueous solutions, dilute acids and bases, and a broad range of common laboratory reagents, making it well suited to biological sample storage environments. HDPE maintains reasonable flexibility and impact resistance at cryogenic temperatures, which helps preserve cap integrity and sealing performance through freeze-thaw cycling. Note that HDPE is not recommended for autoclaving, and compatibility with chlorinated or aromatic solvents should be verified before use.
Quality & Procurement
Made in USA, Caplugs® Evergreen CryoSure® vial caps are produced under ISO 9001 quality management from BPA-free, phthalate-free, latex-free HDPE resin. LabSupplies.com is an authorized dealer and ships from USA inventory, typically same business day for stocking items, with tiered pricing available for institutional and grant-funded laboratories.
Frequently Asked Questions
Are these cryogenic vial caps sterile?
No — they are supplied non-sterile in 200/Bag bulk packaging. If sterility is required for your application, downstream decontamination procedures should be applied according to your laboratory's protocols.
Will HDPE caps hold up at liquid nitrogen temperatures?
HDPE retains useful toughness and flexibility at cryogenic temperatures, making it a commonly used material for cryostorage closures. It is designed to resist embrittlement during freeze-thaw cycling typical of cryogenic workflows.
How does the lavender color help in the lab?
The lavender color allows quick visual differentiation of cryovials by sample type, project, or storage group, reducing the risk of mix-ups in densely stocked cryogenic racks, boxes, and freezers.