EPDM Rubber Cover NBR Rectangular Silicone Plugs

Rectangular silicone plugs can be custom shaped for an elongated opening, with EPDM and NBR among the material options to consider for the environment. Length, width, corner shape, and inserted depth should be defined together. The compound choice should follow the actual exposure rather than the visible outline.

Check how the retaining section engages along the long sides and short ends. A closure can appear flat in the middle while one end remains partly outside the seat. The opening finish and panel thickness should be included when developing the profile.

Fit the plug progressively without pulling its long dimension to make it reach. Inspect the full perimeter before nearby parts make access difficult. Leave a practical handling area if the opening will be used during servicing. During care, check the end corners and inserted region for damage or permanent distortion. Use a replacement with the required material and full geometry rather than a similar rectangle selected only by its overall length.

Material options

Custom silicone or EPDM / NBR formulation; select the compound alongside the mating geometry.

Hardness selection

Silicone: 20–80 Shore A; solid rubber: 30–90 Shore A. Length, width, corner shape, and inserted depth should be defined together.

Custom geometry

The opening finish and panel thickness should be included when developing the profile.

Fit evaluation

Inspect the full perimeter before nearby parts make access difficult.

Color & OEM

Custom colors; OEM identification positioned outside closure contact surfaces.

Photos illustrate structure or material appearance only. Length, width, corner shape, and inserted depth should be defined together. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.