Hardened rubber bungs

Hardened rubber bungs

In terms of plugging ability, hardened rubber bungs are one of the best choices out there. They are less flexible than other types of plugs and bungs but they replace that flexibility with sheer stopping power. This power gives them an edge on the market as they can be applied to those items that are very tricky to properly plug. After all, it all depends on what we are trying to seal. In most cases we can expect it to be liquids and gases, which vary greatly in their traits. It’s especially important to provide proper sealing to those containers that cannot afford interaction with the outside world to their contents. 

Hardened rubber bungs can be used to seal bottles, tubes, barrels, or any other opening. This simple application is very fruitful in a multitude of fields, ranging from construction work to laboratories. The various compounds present in the creation of this item give it additional strength when it comes to enduring harsh conditions. Said conditions are usually related to chemical damage in some way, often directly impacting the hardened rubber bung. The item is exceptionally valuable for small-scale projects and environments dealing with non-corrosive gases. 

This makes them very important for a variety of laboratories. These laboratories have a lot of elements that mustn’t interact with each other, sometimes causing issues even if the two materials are slightly in contact. For the sake of preventing any accidents, hardened rubber bung can be used as a safety measure. While it isn’t able to protect and seal all materials, some more volatile chemicals can get through it, its sealing is still considerably strong. This strength also makes them fitting for outside use. Plugging the exteriors of objects that are exposed to the elements with this bung will keep them safe from any resulting damage. Before purchase, make sure to select bungs of proper dimensions to avoid situations where the bung doesn’t fit the hole you need to plug with it. Measure the required surface before engaging in a purchase for maximum coverage of all your plugging necessities.

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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