Test Tube Caps
Culture tube caps are essential pieces of laboratory equipment, as they ensure the safe handling of samples by sealing test tubes to prevent contamination. We have various caps available, including Kim Rak, Kim Kap, and NMR tube caps that are suitable for many uses and provide a tight and secure seal within the laboratory as well as dropper nozzles with pointed tips for fitment over the neck and dropper tip. Some stainless steel closures can provide storage for long periods.Depending on the sample access requirements, snap caps, and flange caps can provide a secure seal with minimal effort. Consider the tube, sample, and level of protection required to ensure the integrity of your results.
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XtraClean Bouffant Caps
XtraClean® (a Thomas Scientific Brand)XtraClean pleated bouffant caps are made of a lightweight and soft, virgin polypropylene material. Machine-made, pleated style features double-sewn elastic for added strength and secure fit. Ideal for use in food preparations, pharmaceutical manufacturing and other light industrial…
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Replacement polypropylene open top closures have a bonded-in 0.045” thick septa except for 1709B03, which is a 24-414 open top closure without septa. Choose an I-CHEM® 0.125” thick, 22 mm, PTFE silicone replacement septum to complete the closure system. Thin septa are also available.
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Black Caps with PTFE-Faced Rubber Liners
DWK Life Sciences (Kimble)Excellent for general laboratory use Specially formulated phenolic resin and liner adhesive to withstand the effects of repeated autoclaving PTFE-faced/general purpose white rubber liners are highly resistant to chemical effects Identified in ASTM Specification E982, Class A requirements
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Semi-Automated Handheld Screw Cap Decapper
Azenta Life SciencesSemi-Automated Handheld Screw Cap Decapper, 8-channel provides users with a flexible solution for capping and de capping 96 format screw caps for low-to-mid throughput environments, with easily interchangeable cartridges to switch between tube types. The 8-channel hand-held capper and de-capper…
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AlteCap™ Swift Automated Screw Cap Decapper
AltemisLabAlteCap™ Swift Automated Screw Cap Handling Full rack capping and decapping Fast screw cap handling - Decap a full rack of 96 tubes in 10 seconds Flexible - Easily switch between different tube & cap types Advance cap drivers - Compatible with all screw caps from different…
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Membrane Cap, Blue Polypropylene
Bellco GlassPTFE sealed-in gas permeable membrane. Reduces risk of excess internal pressure. Can be tightened during autoclaving.
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Certified ULTRAPure Septa 11mm Crimp Caps
MicroLiterMicroLiter Certified ULTRAPure Septa caps ultra-low bleed silicone inserts in 11 mm silver aluminum crimp caps are available in non-silted and silted versions. Ultra-low bleed blue/teal silicone Shore A is laminated to white PTFE film, 3 mm thick. Silver aluminum crimp caps are lacquer coated. …
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Vented Caps
ChemglassBlue polypropylene vented cap has a 0.22µm PTFE hydrophobic membrane to allow gas exchange while preventing contamination. They are autoclavable at 121°C. Must be used with our 70mm silicone gasket
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Phenolic Pulp/Vinyl Lined Caps are perfect for general use. The liner is made of a vinyl coating applied to high density polyethylene coated paper and then it is laminated to pulpboard. This general purpose liner is commonly used for food, beverage, medical and chemical applications packed at less…
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9mm Bonded Closures
ChemglassBonded closures feature clear PTFE/Silicone liner bonded directly to the closure without the use of glue or adhesives. These bonded closures provide a cost effective, integrated, one-piece system that eliminates costly line fallout. Closures are available in both pre-slit and non-slit designs.
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Septa, Gray Silicone
Ace GlassSepta, gray silicone, 3mm thick. Code -06 used with #7 Ace-Thred, code -10 used with #11 Ace-Thred. Supplied 12 per package.
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Metal caps
QorpakMetal caps are very resistant to fracture from impact, and are great for industrial and food applications. Plastisol Lined Metal Caps and lids offer excellent resistance to mild acids as in food products, and are generally used on glass bottles and jars.
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Black Phenolic F217 & PTFE Lined Caps are known for providing the widest range of chemical compatibility. Foam backed PTFE liners resist attack from virtually all chemicals at room temperature and provides resilience for a tight seal with a low moisture transmission rate. F217 has a low density…
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These reusable Corning® caps are fabricated specially formulated phenolic resin to resist the effects of temperature and steam in autoclaving. Caps are provided with a glued-in white rubber liner.
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Bonded septa in the closure provides extra resealability.
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8mm Aluminum Crimp Seals
National ScientificSecure leak-resistant seal Aluminum seals must be applied with a crimping tool
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ValuLine White Ribbed Polypropylne F217 & PTFE Lined Cap
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AlteCap™ Solo, Single Screw Cap Decapper
AltemisLabAlteCap™ Solo Single Screw Cap Handling Quickly cap, decap or recap single tubes Flexible – easy to use, intuitive touch button controls. Light and portable Functionality – recap tubes or dicard used caps. Apply fresh caps from a cap carrier Stand included –…