Rubber corks

Rubber corks

Generally speaking, rubber corks can be used for various applications and uses, which means that they are suitable for practically all industries out there. Since they are manufactured from high-quality, durable rubber, they are capable of withstanding chemicals such as acids, as well as dust, grime, humidity, heat, cold, oils, and other liquids. These rubber corks come in a wide range of shapes and sizes, however, they can be completely customized, meaning that customers could specify what color, size, and shape they want for their rubber corks. These large or small items are used for sealing various openings on different surfaces, and they can also be utilized for sealing items such as tubes and flasks.

They can be manufactured from a lot of different materials including EPDM, silicone, neoprene, and natural rubber and there are different types offered including solid, micro, as well as rubber corks that have one or two openings in them. The rubber corks that feature one or two holes are usually utilized when there is a need to seal an opening or item that requires constant air circulation. These rubber items are extremely easy to install, mostly because they only need to be pushed into the opening, and manufacturing and assembly plants won’t need additional equipment for installing them.

However, there is a catch when choosing suitable rubber corks – the size needs to be suitable for the opening. This means that, in most cases, the rubber corks must feature a bigger bottom diameter that is smaller than the diameter of the opening that must be sealed. But, since there are a lot of sizes to choose from, customers can find rubber corks that will suit their needs and requirements. They are also long-lasting, hence, there will be no need for replacing them as frequently as some other corks on the market, meaning that different organizations can save a lot of their capital by utilizing rubber corks.

Stopper & Plug Size Catalog

Compare four stopper profiles and check the selected part dimensions against your opening and available depth. Each profile has its own drawing and dimension meanings.

Custom colors are available to your Pantone color code. Include the code in your inquiry.

Blind-Hole · RSTTapered · RSAUndercut · RSBT-Shaped · RSD

RST T-Shaped Plugs

Match stem diameter A, flange diameter B, stem length C and flange thickness D. E refers to the underside recess; use the selected row and approved drawing to confirm the actual profile.

Dimension guide

Product appearance

PartNo.	A（mm）	B（mm）	C（mm）	D（mm）	E（mm）
RST2.5-5.5-5.3	2.5	5.5	5.3	2	0
RST2.7-5.5-5	2.7	5.5	5	2	0
RST3-4.3-4.5	3	4.3	4.5	0.8	0
RST3-7-7	3	7	7	2.2	0
RST3.3-6.5-6	3.3	6.5	6	1.5	0
RST3.5-6.5-6	3.5	6.5	6	2	0
RST3.8-7-10.5	3.8	7	10.5	1.5	0
RST3.8-7-7	3.8	7	7	1.5	0
RST3.8-7-6	3.8	7	6	1.5	0
RST4-7.5-6	4	7.5	6	2	0
RST4-9.5-7	4	9.5	7	2.5	0
RST4.3-8-6	4.3	8	6	1.5	0
RST4.5-7.5-6	4.5	7.5	6	2	0
RST4.8-6.8-3.6	4.8	6.8	3.6	0.9	0
RST4.8-9-7	4.8	9	7	1.5	0

Need a different fit? Share the opening dimensions, mating profile and intended use for a custom size.

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