Description
Tamper-evident cap, 28 mm, ROPP is a high-density polyethylene closure designed for PET narrow-mouth bottles used in laboratory packaging and sample handling. The roll-on pilfer-proof (ROPP) design provides a visible tamper-evident seal, helping users confirm that a bottle has remained unopened during storage or transport. Manufactured from HDPE, the cap suits routine laboratory workflows where chemical resistance and reliable sealing of PET containers are required. Each pack contains 10 pieces and has an approximate weight of 0,042 kg, making it practical for bench-top replenishment or small-batch bottling. The 28 mm format matches common PET narrow-mouth bottle necks, supporting consistent fit across standard lab vessel ranges. These closures from manufacturer SEMADENI are intended for laboratories, pilot plants and sample-preparation areas that need secure, tamper-evident finishing of PET bottles. They integrate easily into existing plastic-bottle workflows without special tooling beyond standard ROPP application practice. Clear dimensional and material specification simplifies selection alongside matching PET narrow-mouth bottles in the same labware assortment.
This article is part of Plastic bottles (narrow & wide mouth), in Bottles & containers.
Key features
- Pack size: 10 pc(s)
- Material: HDPE
- Diameter: 28 mm
- Closure type: ROPP tamper-evident
- Compatibility: PET narrow mouth bottles
- Weight: 0,042 kg
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Questions about Tamper-evident cap, 28 mm, ROPP, , HDPE, for PET narrow mouth bottles
What is this article?
Tamper-evident cap, 28 mm, ROPP, , HDPE, for PET narrow mouth bottles is the article on this page. Luminix Health distributes SEMADENI for laboratory use. It sits in Plastic bottles (narrow & wide mouth), inside Bottles & containers, in Labware.
A plastic bottle is polyethylene, polypropylene or a fluoropolymer, narrow-mouth for pouring or wide-mouth for powders. It is the choice when the bottle must not shatter, and it is the wrong choice for solvents that swell the plastic.
A laboratory bottle is a closed container with a stated volume and a neck that takes a cap, a stopper or a dispenser. Borosilicate glass is the choice when the liquid is a solvent, or when the bottle will be heated or autoclaved. Polyethylene and polypropylene are the choice when the bottle must not shatter, or when hydrofluoric acid would attack glass. A narrow mouth pours. A wide mouth is for powders and for reaching the bottom. Laboratory ware of this kind is indexed under ISO laboratory glassware. Traceable volume sits with the BIPM and NIST Physical Measurement.
Which category should I open next?
The category is Bottles & containers. The sub-category is Plastic bottles (narrow & wide mouth). The catalogue is Labware.
Shelves beside this one are Laboratory glass bottles, Sample containers & jars, Canisters & jerrycans, Wash bottles and Bottle accessories (pouring rings, dispensers, caps).
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.