Medical butyl rubber stopper bottle hole seal plug

A medical butyl rubber stopper is a custom bottle closure component that needs to match the intended opening and retention arrangement. Its body profile and seating surface determine where the rubber contacts the container. The selected butyl configuration should be assessed as part of the complete medical packaging or device system.

The stopper should reach its defined position without a rolled edge or concentrated stretch. Review the actual bottle finish and any other closure parts that hold it in place. Handling and processing can place different demands on the interface, so the fit needs evaluation under the conditions established for the finished system.

Material suitability depends on the intended contents, contact duration, and any cleaning or treatment used before and during service. A generic medical description does not establish sterility, compatibility with all substances, or a universal heat-treatment method. The complete product must define those requirements.

Keep the contact surfaces protected from particles and damage during assembly. Inspect the seating profile before fitting and use the handling procedure intended for the final system. If a closure is damaged or its fit changes, replacement should follow that system's requirements rather than rely on a visually similar stopper with an unspecified material configuration.

Material options

Butyl rubber compound options, customized alongside the profile and contact conditions.

Hardness selection

Solid rubber options: 30–90 Shore A. A Medical butyl rubber stopper is a custom bottle closure component that needs to match the intended opening and retention arrangement.

Custom geometry

Its body profile and seating surface determine where the rubber contacts the container.

Fit evaluation

Inspect the seating profile before fitting and use the handling procedure intended for the final system.

Color & OEM

Custom colors; OEM identification positioned outside closure contact surfaces.

Photos illustrate structure or material appearance only. A Medical butyl rubber stopper is a custom bottle closure component that needs to match the intended opening and retention arrangement. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.