Seals & Caps

Many of our products can be used as storage vessels. We also have the matching seals, which are optimally adapted to the product in question:

Aluminum crimp caps, with or without septum
Thread caps in aluminum or plastic, with or without septum
Single septums in various designs (plastic, rubber, etc.)
Ribbed plugs, olive plugs, hole plugs, intermediate stoppers
Freeze drying plugs

… and many other products – talk to us today!

NMR sealing caps

Standard caps for 3 mm NMR tubes

Packaging unit: 1000 units

Article number	Color	Inquiries
332511	Red	Request information Article number added to the contact form (see below)
332512	Green	Request information Article number added to the contact form (see below)
332513	Yellow	Request information Article number added to the contact form (see below)
332514	Blue	Request information Article number added to the contact form (see below)
332516	Black	Request information Article number added to the contact form (see below)
332517	Purple	Request information Article number added to the contact form (see below)
332523	Light blue	Request information Article number added to the contact form (see below)
332518	Pink	Request information Article number added to the contact form (see below)
332519	White	Request information Article number added to the contact form (see below)
332522	Bright orange	Request information Article number added to the contact form (see below)

Packaging unit: 50 units

Article number	Color	Inquiries
332511-50	Red	Request information Article number added to the contact form (see below)
332512-50	Green	Request information Article number added to the contact form (see below)
332513-50	Yellow	Request information Article number added to the contact form (see below)
332514-50	Blue	Request information Article number added to the contact form (see below)
332516-50	Black	Request information Article number added to the contact form (see below)
332517-50	Purple	Request information Article number added to the contact form (see below)
332523-50	Light blue	Request information Article number added to the contact form (see below)
332518-50	Pink	Request information Article number added to the contact form (see below)
332519-50	White	Request information Article number added to the contact form (see below)
332522-50	Bright orange	Request information Article number added to the contact form (see below)

Standard caps for 5 mm NMR tubes

Packaging unit: 1000 units

Article number	Color	Inquiries
332500	Red	Request information Article number added to the contact form (see below)
332501	Green	Request information Article number added to the contact form (see below)
332502	Yellow	Request information Article number added to the contact form (see below)
332504	Blue	Request information Article number added to the contact form (see below)
332505	Black	Request information Article number added to the contact form (see below)
332506	Purple	Request information Article number added to the contact form (see below)
332507	Light blue	Request information Article number added to the contact form (see below)
332508	Pink	Request information Article number added to the contact form (see below)
332509	White	Request information Article number added to the contact form (see below)
332510	Bright orange	Request information Article number added to the contact form (see below)

Packaging unit: 50 units

Article number	Color	Inquiries
332500-50	Red	Request information Article number added to the contact form (see below)
332501-50	Green	Request information Article number added to the contact form (see below)
332502-50	Yellow	Request information Article number added to the contact form (see below)
332504-50	Blue	Request information Article number added to the contact form (see below)
332505-50	Black	Request information Article number added to the contact form (see below)
332506-50	Purple	Request information Article number added to the contact form (see below)
332507-50	Light blue	Request information Article number added to the contact form (see below)
332508-50	Pink	Request information Article number added to the contact form (see below)
332509-50	White	Request information Article number added to the contact form (see below)
332510-50	Bright orange	Request information Article number added to the contact form (see below)

NMR septum caps

Compared to standard caps, our NMR sealing caps provide far better sealing protection against solvents such as acetone, water, chloroform and DSMO. The septum seal attached to the rim provides additional protection here. And yet the caps can be removed from the tubes without any hassle. When removing and filling samples, the septum can also be pierced through with normal disposable cannulas. The caps are then only slightly less impermeable and even allow for the tubes to be emptied and filled with low evaporation loss.

Diameter: 5 mm
Comprising pre-assembled septum cap
Silicone white / PTFE blue
55° shore A 0.9 mm
With and without slit
Packaging unit (PU): 100 units
Minimum order quantity: 100 units

Article number	Article description	Inquiries
332520	NMR septum cap – Ø 5 mm, natural rubber red / TEF transparent, without slit	Request information Article number added to the contact form (see below)
332521	NMR septum cap – Ø 5 mm, silicone white / PTFE blue, with slit	Request information Article number added to the contact form (see below)

NMR-labels for standard 5 mm tubes

These labels are solvent-resistant and, due to their durability, are ideal for clear, long-term identification of samples in 5 mm NMR tubes. Since they are arranged on a sheet, they can be printed using a laser printer or conveniently written on by hand. Labelling field size 25 x 13 mm, total length 37 mm.

Article number	Article description	Packaging	Inquiries
6000026	NMR-tubes labels for laser printers or hand writing. Resistant to solvents. sterilizeable.	1 sheet / 49 labels	Request information Article number added to the contact form (see below)

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Price list 2025 – An overview of all standard products

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