When off-the-shelf options fall short, custom molded seals step in to provide tailored solutions for unique sealing challenges.

Custom molded shapes are the result of innovative thinking in the world of sealing solutions. Expertise and resourcefulness have combined to create these unique components, allowing engineers to design seals that fit their exact requirements.

Over time, the manufacturing of custom molded shapes has advanced, using modern techniques and a variety of materials. Today, these molded shapes are precision-engineered products, each one carefully crafted to meet the specific needs of different industries. Whether it's in the automotive sector, aerospace, or other fields, custom molded shapes have become essential for ensuring the reliability of critical systems and processes.


What Are the Advantages of Using a Custom Molded Seal?


Innovative Solutions

Custom molded seals allow engineers to design unique shapes and features to optimize performance and address specific sealing challenges that may not be achievable with standard seals.

Precise Fit

Custom molded seals are designed and manufactured to exact specifications, ensuring a perfect fit for the specific application, which reduces the risk of leaks and performance issues.

Optimized Performance

Custom seals can be engineered to meet precise performance criteria, including temperature resistance, pressure handling, chemical compatibility, and wear resistance, leading to improved performance and longevity.

Cost Efficiency

While there may be initial design and tooling costs, custom seals can be more cost-effective in the long term by improving system efficiency, reducing maintenance, and preventing costly downtime due to seal failure.

Enhanced Durability

Custom seals can be made from materials that are ideally suited to the application's environment, increasing their resistance to wear, tear, and deterioration over time.

Reduced Assembly Time 

Custom seals designed to fit perfectly can reduce assembly time and complexity, streamlining production processes.

Sealing Complex Shapes

In applications with irregular or complex shapes, custom molded seals can be engineered to conform precisely to the contours, providing effective sealing where standard seals might fail.

Reduced Waste

Custom seals minimize material waste because they are tailored to fit the application precisely, which can be more environmentally friendly and cost-effective in the long run.

When conventional seals fall short, custom molded

seals offer answers to the toughest challenges.

Common Industries


  • Electronics: Electronics manufacturing uses custom seals to protect sensitive components from environmental factors, dust, and moisture.
  • HVAC and Refrigeration: Heating, ventilation, air conditioning (HVAC), and refrigeration systems use custom seals to maintain temperature control and prevent refrigerant leaks.

Life Sciences

  • Medical:  Medical devices and equipment require custom seals to maintain sterile conditions, prevent contamination, and ensure patient safety.  
  • Pharmaceutical:  The pharmaceutical industry relies on custom seals for packaging, filling, and processing equipment to maintain product quality and integrity.  
  • Food and Beverage:  Custom seals are used in food processing and packaging machinery to prevent contamination and ensure product freshness.

Energy, Oil & Gas

  • Oil and Gas: The oil and gas industry employs custom seals in drilling equipment, pipelines, and valves to prevent leaks and maintain operational safety.
  • Power Generation: Power plants, including nuclear, fossil fuel, and renewable energy facilities, use custom seals in turbines, pumps, and valves to ensure reliable operations.

Fluid Power & Hydraulics

  • Automotive: Custom seals are essential for engines, transmissions, and various automotive components to prevent leaks and ensure proper functionality.
  • Aerospace: Aerospace applications rely on custom seals for aircraft engines, hydraulic systems, and other critical components to maintain safety and performance.
  • Chemical Processing: Custom seals are essential in chemical processing equipment to prevent leaks and maintain safety in handling corrosive materials.

Heavy Equipment

  • Mining and Construction: Custom seals are employed in heavy machinery and equipment used in mining and construction applications to prevent hydraulic fluid leaks and maintain equipment efficiency.
  • Marine: In the maritime sector, custom seals are used in ship engines, propellers, and navigation systems to keep vessels seaworthy.

Explore the importance of custom molded materials and learn about common options.

Material selection for custom molded sealing applications is a complex decision that requires careful consideration of multiple factors. The right material ensures the effectiveness, reliability, and longevity of the seal, which is essential for the overall performance and safety of the equipment or system. Commonly utilized materials include:  

The most trusted suppliers in the market

Parker (1)
dupont (1)
frednoc (1)


We know how crucial it is for you to have parts that perfectly fit your needs. With our in-house manufacturing capabilities, we can create custom parts to ensure you get the right sealing solution for your application.

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For nearly 50 years, our customers have trusted Wyatt seal to find solutions for even the most complex sealing conditions.

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