WidgetCo offers an array of silicone stoppers for use in laboratories, high temperature environments, and other industrial applications. Our silicone stoppers are designed to stand up against extreme temperatures as well as prolonged exposure to harsh chemicals. They’re perfect for sealing up test tubes, beakers, and any container that requires a tighter seal. You could easily use our stoppers to bottle general purpose liquids or bath products or for storing medicines. Every one of our silicone rubber stoppers are made from the highest quality silicone classified as a 55 on the shore durometer, that’s VERY durable! No matter what you put our silicone stoppers through, they’ll stay as strong and durable as the first day you bought them. Manufactured from long lasting silicone rubber for it's inert properties and high temperature rating of 550ºF/287ºC. Order today!

• FREE SHIPPING to 48 states.
• We strive to ship same business day by 4pm CST.
• Next and 2nd business day delivery available.
• Buy wholesale silicone stoppers in bulk; no minimum.
• 30 day satisfaction guarantee.

How to choose the right size Rubber Stopper:
As a general rule, choose the stopper with the biggest bottom diameter smaller than the inside opening diameter of your hole, etc.

See Also:
Black EPDM Rubber Stoppers | Green Neoprene Stoppers | Pure Gum Stoppers