Custom Closed Rubber Oval Flat Grommet

A closed rubber oval flat grommet covers an elongated panel opening without leaving an open cable passage through its center. Its oval outline can suit a slot-shaped cutout where a round blanking piece would not follow the perimeter. The flatter face also needs enough surrounding clearance to sit properly against the panel.

Measure both the long and short axes of the opening, along with the panel thickness. Similar-looking oval holes can have different end curves, leaving a poor fit even when the overall length agrees. Full engagement around the rounded ends is especially important because a partially seated lip can be difficult to notice from the front.

Fit the part into a smooth opening and inspect the entire perimeter for folds. Treat the closed center as part of the original blanking design: cutting it changes the product's function and may leave an unsupported edge. If cables are needed later, choose a passage geometry that supports them instead of assuming any slit will provide suitable protection.

Material options

Custom rubber compound and color, selected for the contact conditions and required geometry.

Hardness range

30–90 Shore A for rubber. Balance insertion flexibility with support around the opening. The flatter face also needs enough surrounding clearance to sit properly against the panel.

Custom profile & fit

Measure both the long and short axes of the opening, along with the panel thickness.

Assembly considerations

Full engagement around the rounded ends is especially important because a partially seated lip can be difficult to notice from the front.

Design check

Fit the part into a smooth opening and inspect the entire perimeter for folds.

Photos illustrate structure or material only. If cables are needed later, choose a passage geometry that supports them instead of assuming any slit will provide suitable protection. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.