Description
BOLA Blind Cap Inserts for GL 18 are solid PTFE inserts that turn matching screw-cone caps into sealed blind closures in laboratory fluid systems. Fabricated completely from polytetrafluoroethylene, each insert drops into the cap and locks in place when the cap is tightened, ensuring the process medium touches only PTFE. The GL 18 format uses a 10 mm cap bore. Connections disassemble easily for cleaning, supporting repeated use with aggressive chemicals. The inserts are intended for replacement screw-cone caps made of ETFE and PPS, including cap articles D 600-08 and D 634-20. Delivered as a single piece with a net weight of 0,007 kg, they offer a compact, inert blanking option for unused GL ports on manifolds, vessels and transfer lines. These BOLA parts from manufacturer Bohlender maintain fully fluoropolymer wetted surfaces without metal or elastomer contact. They suit analytical work, synthesis benches and general laboratory infrastructure wherever temporary or permanent sealing of GL 18 openings is needed while preserving broad chemical resistance and stream purity.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Polytetrafluoroethylene (PTFE)
- Cap thread: GL 18
- Cap bore: 10 mm
- Compatible caps: ETFE and PPS screw-cone caps
- Suitable for cap articles: D 600-08, D 634-20
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Questions about BOLA Plugs for Screw Caps, GL 18 PTFE
What is this article?
BOLA Plugs for Screw Caps, GL 18 PTFE is the article on this page. Luminix Health distributes Bohlender 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.
How does ordering and shipping work?
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.