Custom manufacturing example · Rubber square gasket/ Food grade silicone gasket seals

CUSTOM RUBBER & SILICONE MANUFACTURING

Rubber square gasket/ Food grade silicone gasket seals

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

A rubber square gasket should follow the corner shape and sealing width of its mating faces. The straight sides can appear aligned while a corner radius leaves material folded or unsupported. A silicone configuration for food equipment needs the chosen formulation and finished gasket assessed for the actual contact, temperature, and cleaning conditions.

Define thickness around the available closing gap and check the fastener positions. Force applied near the corners may compress the gasket differently from the middle of a side, particularly on a less rigid cover. Keep openings clear without narrowing the sealing band unnecessarily.

Place the gasket flat and bring the adjoining face down evenly. Do not pull the corners outward to make a mismatched outline reach its seat. After disassembly, compare the contact pattern around the entire square and inspect for local tears. If cleaning or repeated opening affects the shape, preserve the intended specification during replacement and review the handling route rather than trimming away material that belongs in the sealing path.

Material options: Silicone. Custom formulation and color for the intended contact conditions.
Hardness selection: Silicone: 20–80 Shore A. Force applied near the corners may compress the gasket differently from the middle of a side, particularly on a less rigid cover.
Custom dimensions: A Rubber square gasket should follow the corner shape and sealing width of its mating faces.
Fit & assembly: Define thickness around the available closing gap and check the fastener positions.
Use & inspection: If cleaning or repeated opening affects the shape, preserve the intended specification during replacement and review the handling route rather than trimming away material that belongs in the sealing path.

Photos illustrate structure or material only. A Rubber square gasket should follow the corner shape and sealing width of its mating faces. 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

Define the part

Identify key dimensions, mating surfaces and quantity

Review material & tooling

Agree the compound and manufacturing approach

Evaluate the sample

Review the fit and agreed requirements in the assembly

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.