Flat Top Silicone Stopper
Don’t you hate it when you come home from a hard day at work, and instead of lying down in the bathtub and relaxing for half an hour, you have to stand and take a shower simply because you can’t plug the bathtub drain? We know we did. We don’t, anymore, because we manufactured a neat little thing called a flat top silicone stopper.
A flat top silicone stopper is just what you think it is. The name says it all. It is a flat top stopper made out of silicone. Even though it is a flat top, this stopper can be customized in a variety of ways – which we do. Not only can we do make these stoppers in a variety of sizes and colours, but we can also customize the shape if that is what you want. However, in most instances, a flat top silicone stopper is circular in shape since most pluggable holes are also circular in shape.
The most common use case scenario for a flat top silicone stopper is just the one we mentioned in the intro – plugging drains. Whether you want to plug your sink to wash the dishes or you want to plug the bathtub to have a nice, relaxing bubble bath – we got you covered. Our flat top silicone stopper is there for your every need – whatever the need be. Even if you just want to use it to level your furniture in the living room. If you happen to require a flat top silicone stopper that you don’t see in our catalogue, say a big, red silicone topper with a small tab to pull on – don’t hesitate to contact us with your request. We might just be able to provide you with a custom made flat top silicone 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.
Custom colors are available to your Pantone color code. Include the code in your inquiry.
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.

RSA Tapered Corks
Compare large-end diameter A, small-end diameter B and Height, in mm. The mating bore and required seating depth determine where the taper contacts the opening.

RSB Undercut Plugs
Compare neck diameter A, flange diameter B, flange-to-lip distance C and flange thickness D. Check panel thickness and rear clearance. E refers to the underside recess.

RSD T-Shaped Stoppers
Compare stem diameter A, flange diameter B, stem length C and head thickness D, in mm. Check the seating surface and available depth as well as the hole diameter.

Need a different fit? Share the opening dimensions, mating profile and intended use for a custom size.
Discuss Your RequirementsProduct specifications
- Product form
- Removable closure fitted inside an opening
- Material
- Silicone. Specify the compound grade for the selected service.
- Dimensions to confirm
- Opening diameter, closure profile, insertion depth and exposed grip.
- Top profile
- Dimension the flat head, its overhang beyond the opening and the grip available for removal.
- Profiles discussed
- Round profiles and flat contact faces. Select the profile that matches the mating part and dimension that section explicitly.
- Seating check
- Check the sealing contact around the opening and the force needed for insertion and removal.
Need a quote or a custom part?
Send your requirements, drawings or samples to discuss standard and custom silicone rubber parts.
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