Rubber Gasket

A rubber gasket (also called rubber flat seal, molded rubber gasket, die-cut rubber washer, or custom rubber sealing gasket) is a mechanical seal that fills the space between two mating surfaces to prevent leakage of liquids, gases, dust, or pressure under compression. OKIN produces both compression-molded rubber gaskets and precision die-cut flat gaskets using premium-grade NBR, EPDM, FKM (Viton®), Silicone, CR, NR, and SBR compounds to meet the most demanding industrial sealing requirements.

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Flame Resistant EPDM Rubber Gasket

Viton® FKM Rubber Gasket

Rubber PVC Waterstop Gasket

Manufacturing Process of Molded Rubber Gaskets

Gasket is mainly done by cutting under formation (sheet cutting) or compression. Cutting under the format is cost-effective for simple, flat geometry. Casting is used for complex 3D shapes or applications requiring strict tolerances. All gaskets manufactured shall be checked for accuracy of dimensions, durometer and compression set resistance.

 

Importance of Rubber Gasket

Quality gaskets are crucial for maintaining system pressure, preventing fluid pollution and protecting sensitive equipment from environmental impact. Under conditions of high temperature, high pressure or corrosion, choosing the right elastomer prevents the failure of the gasket by avoiding costly downtime and safety hazards.

 

Features of Molded Rubber Gasket

  • Excellent fluid and environmental gasket
  • High resistance to compression and deformation
  • Withstand various chemicals, oils and extreme temperatures
  • Custom durometers, colors and shapes available
  • Ideal for static gasket flanges, hulls and LIDS

 

Types of Molded Rubber Gaskets

Epdm Rubber Gaskets Epdm rubber gaskets provide excellent weather, ozone and water resistance. They are the most common type of gasket for outdoor applications, hvac systems and water purification equipment.
Silicone Gaskets Silicone gaskets provide excellent thermal stability and flexibility at low temperatures. They are often used in food processing, medical devices and electronics casings because of their clean and odorless properties.
Viton Gaskets (FKM) Viton gaskets (FKM) are specially designed for resisting fuel, lubricants and highly aggressive chemicals. They are a premium choice for high-performance gaskets in aerospace, oil and gas and chemical plants.

 

FAQs

Molded gaskets are formed in molds and ideal for complex shapes, tight tolerances, and dynamic sealing. Die-cut gaskets are cut from flat sheets and best suited for simple 2D profiles.

Yes, we specialize in custom molding based on your drawings or CAD models. We support prototype development and offer tooling assistance for small and large production runs.

They are used in automotive, aerospace, marine, medical, industrial automation, electronics, and energy sectors. Custom sealing solutions are available for both OEM and aftermarket needs.

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