High Quality Water proof Silicone plug1.Withstand temperatures up to 600°F (316°C) and are the industry standard for powder coating applications2.Plugs can be re-used many times3.No risk of contamination to paint line4.Custom sizes available with minimal tooling investmentThe Silicone plug is made of high quality food grade silicone rubber,which is environmentally friendly ,It can be any size, any color.FEATURES*Durability *Flexibility*Eco-friendlyPhysical properiesIt can be any kinds of size.The size of Silicone plug also Can be Customized. If you need customized size, please feel free to contact Richard in the end..Application:The silicone plug can be used on the bottle ,In test tube of the laboratory .Working ProcessWe can provide all kinds of silicone plugs, rubber plugs, rubber part,etc,welcome to customize!Our products are sold to all over the world.‍Production workshopRubber mixing machineProduction machineThe molds