Description
Nalgene™ HDPE closures with liner for serum vials deliver a leakproof seal on continuous-thread PETG serum vials without rubber stoppers. These non-sterile screw-thread closures combine an HDPE body with a three-layer coextruded liner—an LDPE core between two solid HDPE outer layers—for dependable sealing in routine laboratory serum-vial work. Outer diameter is 22,1 mm and the closure size is 20-415, matching non-sterile Nalgene PETG serum vials with continuous thread. Closure colour is black; the liner system supports secure containment while remaining compatible with standard serum-vial workflows. Supplied as a case of 2000 pieces from manufacturer Thermo Scientific - Laboratory Plastics, the closures suit high-throughput filling, storage and handling of serum samples where a reliable screw seal is required. Ideal for laboratories that need consistent fit, chemical resistance of HDPE/LDPE construction and elimination of separate stopper components in PETG serum-vial systems.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 2000 pc(s)
- Material: HDPE with LDPE liner
- Closure size: 20-415
- Outer diameter: 22,1 mm
- Liner: Three-layer coextruded LDPE core between HDPE layers
- Closure type: Screw thread
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Questions about Nalgene™ Lined HDPE Serum Vial Closure for Continuous-Thread Vials:
What is this article?
Nalgene™ Lined HDPE Serum Vial Closure for Continuous-Thread Vials: is the article on this page. Luminix Health distributes Thermo Scientific - Laboratory Plastics for laboratory use. It sits in Screw caps & closures, inside Stoppers, caps & closures, in Labware.
A screw cap has a thread and a liner. The thread has to match the bottle. The liner has to survive the liquid: a pulp liner fails in a solvent that a PTFE-faced liner ignores. The colour of the cap is not the specification.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Screw caps & closures. The catalogue is Labware.
Shelves beside this one are Rubber & silicone stoppers, Ground-joint glass stoppers, Lids & seals and Closures (other).
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.