You’ve done the work to get the sample in the vial just the way it should be – now you have to protect it. For this reason, you must use a vial stopper, which can be made in different shapes, sizes, and materials. Here are a few reasons why silicone stoppers may be the way to go.
Silicone Stoppers for Long-Term Storage
Silicone is a great material for long-term storage. It is more chemical- and acid-resistant than other materials, so you can store a greater variety of solutions in vials with silicone stoppers. Silicone holds up against humidity and water longer than other stoppers, which means your compound will not be contaminated by algae or bacteria. Heat and acid can warp certain stoppers, which can compromise your compounds. Silicone is a great solution for these kinds of problems.
Durable and Versatile Silicone Stoppers
Silicone stoppers don’t crack and don’t release particles, so your product will not be contaminated. Silicone can be sterilized repeatedly and will last a long time. They can be used with autoclaves, media bottles, carboys, and vials. Silicone stoppers also handle injection draws as effectively as butyl and rubber stoppers. From a strictly visual standpoint, many prefer them as well; they are clear, which gives them a clean appearance.
How to Maintain Silicone Stoppers
Like most products though, if silicone stoppers are not maintained, they will break down. To prevent damage by extra stress, use aligned needle bevels with silicone stoppers. It is also important to sterilize properly and maintain the correct air pressure after an injection draw.
Silicone stoppers aren’t necessarily a replacement for rubber and butyl. Butyl and rubber stoppers are still often used – and they have their place. Still, silicone stoppers have distinct advantages in many situations. Med Lab Supply has silicone stoppers available for vials in 13mm and 20mm sizes. If silicone is the choice for your lab, we have what you need.