Custom molded transparent rubber seal rings o-ring gasket

Custom transparent rubber seal rings can make a visible interface easier to inspect while it is assembled. The clear appearance may help reveal an uneven edge or trapped particle, but the ring still needs the correct profile for its seat. Dimensions and material should be selected for the actual mating parts.

Establish whether the joint uses a flat section or a circular O-ring section before choosing the ring. Similar overall diameters do not define equivalent installed shapes. The groove or contact face determines the space available for controlled compression.

Place the ring cleanly and inspect around the entire circumference, including areas partly hidden by nearby features. Bring the mating component into position without twisting the rubber. Select the compound for the contents and temperature rather than relying on transparency as a material identifier. During servicing, remove deposits from the seat and check the ring for cuts or permanent shape changes. Use the matching section for replacement, even if a differently shaped clear ring appears to fit the same opening.

Material options

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

Hardness selection

Rubber: 30–90 Shore A. The groove or contact face determines the space available for controlled compression.

Custom dimensions

Establish whether the joint uses a flat section or a circular O-ring section before choosing the ring.

Fit & assembly

The clear appearance may help reveal an uneven edge or trapped particle, but the ring still needs the correct profile for its seat.

Use & inspection

Place the ring cleanly and inspect around the entire circumference, including areas partly hidden by nearby features.

Photos illustrate structure or material only. The groove or contact face determines the space available for controlled compression. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.