Transparent Vial Stopper

It is not a secret that rubber stoppers can be customized in any kind of way, basically. From the kind of rubber used for the manufacturing process, over shape and size, and all the way to something as simple as colour – stoppers can basically be infinitely customized. However, sometimes, you don’t really need to dye your rubber stoppers in any colour, and something transparent is exactly what you need.

A transparent vial stopper, for instance, is a stopper used to safely and securely close or plug a certain vial. Also, a transparent vial stopper is made from silicone, as silicone is naturally colourless. A transparent vial stopper can be used in various settings, mostly thanks to silicone’s versatility and overall excellent resilience to all kinds of outside factors. However, you will most commonly find these in a chemical facility or a laboratory, where you would have various chemicals stored inside of the vials. Generally speaking, no other stopper is as popular for closing down the vials as a transparent vial stopper is. Silicone is universally considered to be the perfect material for this kind of work, and here’s why.

Silicone is one of the most stable forms of rubber, thanks to its siloxane bonds. Its binding energy is very high, especially compared to some other organic polymers, which means that a silicone product, such as a transparent vial stopper, will have much higher heat resistance, chemical stability and better electrical insulation. As you can imagine, all of these are essential qualities for a vial stopper. For example, a transparent vial stopper can withstand temperatures as high as 270 degrees Celsius, and as low as negative 20 degrees Celsius, which means that vials can be safely stored in a refrigerator or a cooler, but they can also be safely used in a vortex mixer which spins at very high speeds and generates quite a bit of heat.