Custom transparent silicone rubber seal o ring for jars

Silicone jar seals should remain correctly located after the lid is applied. The closing action can drag or roll a flexible ring even when it lay neatly in its seat beforehand.

ETOL can customize dimensions, color and material construction. Compare the jar rim, lid contact and available space for the seal, then choose the formulation for the contents and cleaning conditions. Keep the transparent surface clean so trapped particles and local damage can be inspected readily.

Position the ring without stretching it and apply the lid by its intended method. Check the accessible perimeter for a displaced section and evaluate the completed closure for its required duty. During removal, handle the seal without scraping it against sharp edges. Clean the seating surfaces before refitting and inspect the ring's hidden face as well as its visible outside edge. If a replacement lid or jar changes the fit, reassess the profile rather than forcing the same ring into a closure with different contact geometry.

Material options

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

Hardness selection

Silicone: 20–80 Shore A. The closing action can drag or roll a flexible ring even when it lay neatly in its seat beforehand.

Custom dimensions

Check the accessible perimeter for a displaced section and evaluate the completed closure for its required duty.

Fit & assembly

Clean the seating surfaces before refitting and inspect the ring's hidden face as well as its visible outside edge.

Use & inspection

Keep the transparent surface clean so trapped particles and local damage can be inspected readily.

Photos illustrate structure or material only. During removal, handle the seal without scraping it against sharp edges. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.