Black rubber stopper ø 16

Black rubber cap

Diameter: 16 mm

Pack sizes: 3000 - 1500 - 250 - 100 - 50 - 5

Suitable for tube: 152 mm plastic test tube

Black rubber stopper ø 16 mm – Leak-proof, durable cap for test tubes

The black rubber stopper with a 16 mm diameter is a sturdy, practical closure accessory designed to seal your plastic or glass test tubes effectively. Its flexibility allows it to fit the neck of the tube perfectly, guaranteeing a reliable seal while ensuring simple, safe handling.

This stopper is especially recommended for the 152 mm plastic test tube, but it can also suit many other models of a similar diameter. Its build quality gives it excellent resistance to repeated handling, moisture and slight variations in temperature. Whether you are a laboratory technician, craftsperson, florist or gift box designer, this stopper becomes an essential part of your packaging equipment.

Recommended applications

• Laboratories and education: airtight closure of test tubes, experiment vials or test microtubes.
• Cosmetics and wellbeing: protection of liquid or semi-liquid preparations (oils, serums, elixirs).
• Delicatessen: storing spices, aromatic herbs, flavoured salts or culinary powders in display tubes.
• Crafts and decoration: protection of tiny decorative objects or small creations to be displayed in plastic or glass tubes.
• Educational workshops: a secure stopper for science experiments or educational activities.

Advantages of the black rubber stopper ø 16 mm

• Reliable seal: the soft rubber fits the walls of the tube perfectly, preserving aromas, liquids or powders.
• Very sturdy: withstands repeated handling, moisture and intensive use.
• Easy to use: simple to insert and remove, without tools, thanks to the natural flexibility of rubber.
• Versatility: suitable for test tubes as well as display vials or spice tubes.
• Neutral, elegant colour: the understated black matches different packaging styles, whether professional or artisanal.

Technical specifications

A stopper designed for test tubes

Originally designed for the 152 mm plastic test tube, this stopper fits perfectly into necks of a similar diameter. Its precise fit and soft texture ensure a quick, airtight closure, which is essential for transporting or storing sensitive products.

Whether you use your tubes for samples, cosmetic preparations, spice blends or decorative objects, this stopper offers optimum security by preventing leaks and loss of aroma.

A reliable choice for many sectors

This black rubber stopper is used by a wide range of professionals:

• Laboratories: educational experiments, chemistry, biology, sampling.
• Florists and decorative craftspeople: sealing floral tubes or display vials.
• Spice producers and herbalists: protecting aromatic preparations and keeping them fresh.
• Cosmetic makers: storing oils, powders or plant extracts.

In each of these settings, the durability of the rubber and its ease of handling are real advantages.

Durability and care

The rubber used is sturdy and flexible, allowing repeated use without loss of elasticity or cracking. Simply clean it with soapy water to reuse it, provided it is dried thoroughly before any new contact with food or cosmetics.

Its black colour effectively hides any small signs of use and keeps a professional appearance over time.

An essential ally for your packaging

By choosing this stopper, you opt for a simple, reliable and economical solution. Its compatibility with the 152 mm plastic tube makes it an ideal partner for presentations in gift boxes, sample kits or loose sales.

It contributes to the perceived quality of your products: a tube properly closed with a quality stopper inspires confidence and effectively protects the contents, whether culinary ingredients or cosmetic preparations.

Flexible pack sizes for every need

The black rubber stopper ø 16 mm is available in several pack sizes: packs of 5, 50, 100, 250, 1500 or 3000 pieces. Whether you are a beginner craftsperson wishing to test a small batch or a professional with large-scale production, you will find the solution that suits your needs.

A discreet but essential stopper

The black rubber stopper ø 16 mm offers a perfect balance of flexibility, leak-tightness and durability. It fits test tubes or vials of equivalent diameter and ensures reliable protection of food, cosmetic or decorative contents.

Simple to fit, easy to remove, reusable and durable, it meets the requirements of professionals in crafts, cosmetics, decoration and laboratories. It is an essential packaging accessory for anyone looking for both practicality and quality.

A small stopper, but a big asset for the safety and showcasing of your products.