Solid EPDM rubber plastic stopper plug for hole

A stopper plug for hole closure uses a solid molded body to occupy the receiving opening. Custom dimensions allow the seating profile and insertion depth to suit the part being assembled. The body should make the intended contact without extending into space needed by components behind the opening.

Check the hole shape and depth at the actual seating location. A straight bore, tapered opening, or thin panel can need a different retention profile. The selected EPDM or other specified compound must also suit the medium and temperature at that position; different rubber and plastic materials are not automatically interchangeable.

Fit the plug into a clean, smooth opening and avoid forcing it against a sharp edge. Inspect the visible seat for lifting or uneven compression after insertion. Leave sufficient access if the closure is intended to be removed during service. A solid plug should remain intact while it performs its blanking role, and any later change to a cable or tube passage should use a closure designed for that new arrangement.

Material options

EPDM compound options, customized alongside the profile and contact conditions.

Hardness selection

Solid rubber options: 30–90 Shore A. Inspect the visible seat for lifting or uneven compression after insertion.

Custom geometry

Custom dimensions allow the seating profile and insertion depth to suit the part being assembled.

Fit evaluation

Check the hole shape and depth at the actual seating location.

Color & OEM

Custom colors; OEM identification positioned outside closure contact surfaces.

Photos illustrate structure or material appearance only. A straight bore, tapered opening, or thin panel can need a different retention profile. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.