Professional Silicone Rubber Parts Manufacturers

Test Tube Stopper

A test tube, also called a sample, is laboratory glassware containing clear plastic tubing. Different scientists use test tubes for conducting various kinds of experiments. It’s one side close, and the other one is open.
When scientists conduct an investigation, they need to close an open side such that it doesn’t affect the experiment’s purpose.Test Tube Stopper serves them in this regard. The stopper is made of heavy-duty plugs for providing the best fermenter and the primary placement ideal for home, industrial applications, and laboratories.
The manufacturer of the stopper has thoughtfully made this product according to the demands.Test Tube Stopper contains different dimensions to prevent oxygen during the fermentation.
It is necessary to protect oxygen because it can be destroyed during the fermentation process. Furthermore, the product’s manufacturer arranges a design with a standard tapered shape for smooth removal and easy insertion. It also tends to create an airtight case on the fermenter mouth or carboy.
You will see the tapered and smooth sides of the Test Tube Stopper for optimum fit and excellent deal-wide openings. It makes it very useful and easy to manage. There are a few features of this product that are worth admiring. Some of them are:
· It is very durable and can serve you for a very long
· It is chemical resistant; no matter which type of chemical you are using, it will manage it.
· The product is extremely lightweight.
· It is leak-proof and offers a perfect finish.

Our Products

All dimensions are in mm​

Part No.Diameter ADiameter BHeightColourMaterials 
RSA1.6-0.4-15.91.60.415.9TransparentSilicone
RSA2-0.5-19.120.519.1TransparentSilicone
RSA3.2-0.8-15.93.20.815.9TransparentSilicone
RSA3.2-1.6-15.93.21.615.9TransparentSilicone
RSA4.8-1.6-15.94.81.615.9TransparentSilicone
RSA4.8-1.6-19.14.81.619.1TransparentSilicone
RSA5.5-1.2-38.15.51.238.1TransparentSilicone
RSA6.4-3.2-19.16.43.219.1TransparentSilicone
RSA6.4-3.2-25.46.43.225.4TransparentSilicone
RSA8.7-4.8-15.98.74.815.9TransparentSilicone
RSA8.7-4.8-25.48.74.825.4TransparentSilicone
RSA9.2-6.2-12.89.26.212.8TransparentSilicone
RSA9.5-6.5-18.59.56.518.5TransparentSilicone
RSA11-8.5-17.5118.517.5TransparentSilicone
RSA11.5-6.5-2511.56.525TransparentSilicone
RSA12-9-1812918TransparentSilicone
RSA12.6-9-1712.6917WhiteEPDM
RSA14.3-7.9-28.614.37.928.6TransparentSilicone
RSA14.3-9-25.414.3925.4TransparentSilicone
RSA15-11-20151120WhiteEPDM
RSA15.1-10.3-25.415.110.325.4TransparentSilicone
RSA15.9-11.1-22.215.911.122.2TransparentSilicone
RSA16.7-12.7-25.416.712.725.4TransparentSilicone
RSA17-13.6-241713.624WhiteEPDM
RSA17.5-11.1-25.417.511.125.4TransparentSilicone
RSA19-15-27191527WhiteEPDM
RSA19.1-14.3-25.419.114.325.4TransparentSilicone
RSA19.1-14.3-14.319.114.314.3TransparentSilicone
RSA19.8-15.9-25.419.815.925.4TransparentSilicone
RSA20-15.5-162015.516TransparentSilicone
RSA21-16-26211626WhiteEPDM
RSA23-18-26231826WhiteEPDM
RSA23.5-19-19.523.51919.5TransparentSilicone
RSA23.8-18.3-25.423.818.325.4TransparentSilicone
RSA25.4-19.8-25.425.419.825.4TransparentSilicone
RSA26-20-28262028WhiteEPDM
RSA27-23-25.4272325.4TransparentSilicone
RSA27.9-23.8-25.427.923.825.4TransparentSilicone
RSA29-23-28292328WhiteEPDM
RSA31.8-26.2-25.431.826.225.4TransparentSilicone
RSA33-26-28332628WhiteEPDM
RSA33.4-27-25.433.42725.4TransparentSilicone
RSA36.5-30.2-25.436.530.225.4TransparentSilicone
RSA37-28-30372830WhiteEPDM
RSA38.9-31.8-25.438.931.825.4TransparentSilicone
RSA39-31-25393125TransparentSilicone
RSA41.3-33.3-25.441.333.325.4TransparentSilicone
RSA42-32-31423231WhiteEPDM
RSA42.9-35.7-25.442.935.725.4TransparentSilicone
RSA43-36-25433625TransparentSilicone
RSA44.5-37.3-25.444.537.325.4TransparentSilicone
RSA46-38-25463825TransparentSilicone
RSA46-38.1-25.44638.125.4TransparentSilicone
RSA49-37-31493731WhiteEPDM
RSA50-41.3-25.45041.325.4TransparentSilicone
RSA52-43-32524332WhiteEPDM
RSA52.4-44.5-25.452.444.525.4TransparentSilicone
RSA53-45-25534525TransparentSilicone
RSA56-46-34564634WhiteEPDM
RSA56-47.6-25.45647.625.4TransparentSilicone
RSA62-51-35625135WhiteEPDM
RSA62.7-50-25.462.75025.4TransparentSilicone
RSA63-50-25635025TransparentSilicone
RSA63.5-54-25.463.55425.4TransparentSilicone
RSA67-55-39675539WhiteEPDM
RSA68.3-57.9-25.468.357.925.4TransparentSilicone
RSA75-61.9-34.97561.934.9TransparentSilicone
RSA88.9-76.2-38.188.976.238.1TransparentSilicone
RSA101.6-82.6-38.1101.682.638.1TransparentSilicone
RSA127-88.9-50.812788.950.8TransparentSilicone
  • Material: EPDM/NR/SBR/Silicone/FKM/NBR/CR
  • Hardness: 50-60 Shore A
  • Temperature Rang: -20℃ to 150℃, we can customize products with a temperature resistance of more than 300℃.
  • Colors: Black,White Or according to the Pantone NO#.
  • Custom service available, we can offer special products according to your requirements.

Do you need a quote? Or need to place an order?
We also provide customized services, and can make various non-standard silicone rubber parts according to your drawings or samples.
Welcome to contact us for more information!

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