Silicone Stopper Black

Silicone Stopper Black

We have been manufacturing rubber stoppers, grommets, plugs, and other rubber products for years at this point. During that time, we have created a massive network of satisfied customers simply because we always strive to provide them with the highest quality products. Also, we do our best to tend to our client’s wishes. If they want us to paint their silicone stopper black – we do it. If they want it red – we do that, too.

Now, why would anyone want their silicone stopper black? Well, seeing how there are virtually endless use-case scenarios for silicone stoppers, some folks require theirs to be differently coloured, so they can easily differentiate them one from another and know exactly where to use them. Take laboratories or chemical facilities, for instance. In both of these cases, workers at these facilities deal with a large number of samples each day, and if we are to assume that most of the samples they work with look similar to one another, they need an easy and efficient method telling them apart. Sure, they could write the names on vials, but that would not be very time-efficient, wouldn’t it? So, instead, they use different coloured stoppers to tell them apart.

But, why silicone? Well, silicone is arguably the best material choice for a rubber stopper. It is chemically stable and non-reactive, it offers an excellent seal by adhering to glass, it offers an excellent electrical insulation, and to top things off, silicone is also thermally stable and has low thermal conductivity. When combined, these properties make silicone stoppers perfect for many use-case scenarios and applications, and when you factor in the ability to customize the colours of the silicone stoppers – it is quite easy to understand why someone would choose silicone as their prefered material for a rubber stopper.

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.

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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