rubber protective cover rectangle silicone plugs

Rectangle silicone plugs need their long and short sides aligned with the receiving opening before the contact edge engages. The corner shape can determine whether the plug seats evenly or leaves a folded region beneath its head. Select the complete profile, including depth and corner radii, rather than relying on a single width measurement.

Check surrounding clearance for the protective cover portion and leave enough access for removal. The compound should suit the actual medium, temperature, and cleaning exposure. Where sealing is required, assess the full perimeter and retention arrangement in the completed assembly.

Fit progressively around the intended seat without pulling from one corner to force alignment. Inspect hidden edges where access allows. During service, look for tearing at corner transitions and remove residue before reinsertion. A closure that repeatedly distorts may indicate a mismatch in the receiving outline, so correct that geometry or select the proper profile instead of trimming the rubber edge to make the front appear flush.

Material options

Custom silicone compound; formulation and geometry developed together.

Hardness selection

Silicone options: 20–80 Shore A. Fit progressively around the intended seat without pulling from one corner to force alignment.

Custom geometry

Select the complete profile, including depth and corner radii, rather than relying on a single width measurement.

Fit evaluation

Check surrounding clearance for the protective cover portion and leave enough access for removal.

Color & OEM

Custom colors; OEM identification positioned outside closure contact surfaces.

Photos illustrate structure or material appearance only. The corner shape can determine whether the plug seats evenly or leaves a folded region beneath its head. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.