Wholesale oval sealing rubber stopper/caps with high quality

An oval sealing rubber stopper can be custom molded to follow a noncircular opening. The long dimension, short dimension and curvature at the ends all contribute to fit. These features should match the working opening, while the exposed portion remains suitable for the intended handling method.

Check the stopper's orientation before fitting. The body should enter without twisting, with the rounded ends and longer sides reaching their seats together. A plug can look aligned along its long axis while one end is folded beneath the rim. Inspect around the full perimeter rather than judging from the central surface alone.

Choose the finished compound for the contents and environmental conditions. Custom color can distinguish an oval variant from other closures, but it does not replace matching the contour. Before reuse, clean the mating surface and inspect the ends for damage from removal. Avoid pulling the stopper from a thin corner or stretching it to compensate for an opening whose long dimension differs from the intended profile.

Material options

Rubber. Custom formulation and color for the intended contact conditions.

Hardness selection

Rubber: 30–90 Shore A. Avoid pulling the stopper from a thin corner or stretching it to compensate for an opening whose long dimension differs from the intended profile.

Custom dimensions

The long dimension, short dimension and curvature at the ends all contribute to fit.

Fit & assembly

The body should enter without twisting, with the rounded ends and longer sides reaching their seats together.

Use & inspection

Before reuse, clean the mating surface and inspect the ends for damage from removal.

Photos illustrate structure or material only. A plug can look aligned along its long axis while one end is folded beneath the rim. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.