CUSTOM RUBBER & SILICONE MANUFACTURING

Food grade silicone gasket for glass lids jars

A custom component for your assembly.

Define the mating surfaces, dimensions and working conditions. ETOL manufactures the part to the agreed design and material.

  • Factory direct
  • Made to order
  • Drawing & sample support

Share the part, its application and your estimated quantity.

Customize the fit, material and finish

Vulcanization workshop illustration with green molding presses and blue collection bins

Material & hardness

Selected for the contact, temperature and movement

Color & finish

Define the visible surfaces and intended color

Shape & dimensions

Develop holes, lips and walls around the mating parts

Mounting & fit

Match the attachment and installation method

Product Overview

Silicone gaskets for glass jars should fit the particular lid interface without being pinched against an exposed glass edge. The gasket seat and closure movement determine whether the flexible ring remains correctly positioned as the lid is applied.

ETOL supports custom dimensions, colors and material selections. Choose the formulation for the contents and intended cleaning process. Compare the actual contact path and available compression space rather than assuming similar glass lids use the same ring.

Inspect the glass and rubber for damage before fitting. Place the gasket without tension and apply the lid by its intended method, checking that no section has shifted toward the opening. Evaluate the completed closure for the required function. During cleaning, include the hidden gasket face and its seat. Keep sharp tools away from both the seal and glass. Replace a torn or permanently distorted component after checking the mating surfaces, instead of using an extra gasket layer to cover a damaged edge or uncertain fit.

Material options
Silicone. Custom formulation and color for the intended contact conditions.
Hardness selection
Silicone: 20–80 Shore A. The gasket seat and closure movement determine whether the flexible ring remains correctly positioned as the lid is applied.
Custom dimensions
Place the gasket without tension and apply the lid by its intended method, checking that no section has shifted toward the opening.
Fit & assembly
A food-contact silicone gasket for glass lids should fit the particular jar and lid interface without being pinched against an exposed glass edge.
Use & inspection
Replace a torn or permanently distorted component after checking the mating surfaces, instead of using an extra gasket layer to cover a damaged edge or uncertain fit.

Photos illustrate structure or material only. A food-contact silicone gasket for glass lids should fit the particular jar and lid interface without being pinched against an exposed glass edge. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.

Choosing a material or hardness? Explore the selection guide →

From part requirements to production

01

Define the part

Identify key dimensions, mating surfaces and quantity

02

Review material & tooling

Agree the compound and manufacturing approach

03

Evaluate the sample

Review the fit and agreed requirements in the assembly

04

Produce & inspect

Manufacture and check against the approved requirements

Review the intended assembly

Working conditions

Identify temperature, contact fluids and repeated movement.

Material and structure

Consider hardness together with wall thickness and support.

Installation

Check access, mating dimensions and the fitting sequence.

Ordering this custom component

Can the shape be adjusted to my mating parts?

Yes. Show the receiving opening, contact surfaces and clearance limits. We can review the dimensions and retaining features around the intended fit.

Which details should be agreed before tooling?

Agree the critical dimensions, material, hardness, visible surfaces and sample requirements. Explain how the part is installed and which interfaces control its function.

Can a sample help define the replacement?

A sample can help explain the structure. Compare it with the assembly because wear, swelling or compression may have changed its original dimensions.

How is the quotation for this part determined?

The material, part geometry, tooling, quantity and finishing affect the quotation. Include the intended batch size and delivery destination when describing your requirements.

DISCUSS THIS COMPONENT

Describe the part you need.

Share the fit, operating conditions and quantity with our manufacturing team.

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Send your requirements
and selected drawings

All files and photos you share with us are handled under strict confidentiality procedures and will not be disclosed to any third party.

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You can also email us directly at [email protected].