Custom Rubber Seals

What are rubber seals?

Rubber seals are flexible components designed to prevent the leakage of fluids or gases between two surfaces.

They create a tight barrier that blocks liquids, oils, chemicals, or water from escaping, making them essential in a wide range of fluid sealing applications.

Looking for custom rubber sealing solutions? Contact Delta Rubber today with your requirements or request a quote and our team will get back to you.

How are rubber seals made?

At Delta Rubber, our industrial rubber sealing solutions are manufactured through precision moulding processes, including compression, transfer, and injection moulding. These methods allow us to shape a wide range of rubber materials into high-performance seals that meet exact client specifications.

Each seal begins with a carefully selected elastomer (such as EPDM, nitrile, silicone, or Viton) chosen for its compatibility with the fluids and conditions in your application. The material is then moulded using custom-built tooling to achieve the desired size, shape, and performance characteristics.

Our in-house team ensures that every rubber seal is made to strict quality standards, delivering reliable sealing solutions built for demanding industrial environments.

Types of material used in rubber sealing

Common materials used in rubber seals include:

• EPDM: Excellent resistance to water, steam, and weathering.
• Nitrile (NBR): Ideal for oil, fuel, and hydraulic fluid resistance.
• Silicone: Performs well in high and low temperature environments.
• Viton (FKM): Offers superior chemical and heat resistance.
• Neoprene: Good balance of flexibility, durability, and weather resistance.

Types of rubber seals used in fluid sealing applications

We offer a variety of fluid sealing components designed specifically for fluid sealing, each tailored to meet the needs of different systems and operating conditions:

Hydraulic rubber seals

We offer a selection of hydraulic fluid sealing products. These rubber seals are moulded based on a client’s specified criteria, like working temperature, cylinder speed and operating pressure, application, and medium.

Pneumatic seals ensure air doesn’t escape from cylinders and prevent foreign matter from entering them. Pneumatic seals are generally made from acetyl, butyl, EPDM, flurosilicone, perfluoroelastomer (G-Plast), natural rubber, neoprene, nitrile, nylon, polyurethane, PTFE, silicon, etc.

Piston seals

Piston seals ensure that no liquid passes around the piston from the system pressure that pushes the piston down the cylinder.

Rod seals

Rod seals work in conjunction with wiper seals to protect against outside contaminants like dust and dirt.

Wiper seals

Wiper seals are often used with other sealing components to ensure a tight fit.

Wear rings

Wear rings are used to keep the piston centralised for even wear and stress on the seals.

Back-up rings

Back-up rings are used in combination with O-Rings for static and dynamic sealing applications. These rubber seals prevent O-rings from bulging under high pressures. Ideally, two back-up rings, one on each side of the O-ring, should be used.

O-rings

O-rings are rubber seals usually moulded from elastomers to form a static or dynamic seal. Static O-rings are used to maintain a vacuum, while dynamic O-ring seals can be rotating. These fluid seals can seal thousands of PSI pressure and are common in various applications. In addition, O-rings are easy to manufacture and are one of the most inexpensive fluid sealing solutions.

Industries that rely on rubber seals for fluid sealing

Our rubber seals are trusted across a wide range of industries where fluid control is critical:

• Mining: For slurry transport, hydraulic systems, and dewatering equipment.
• Agriculture: Used in irrigation pumps, sprayers, and fluid handling systems.
• Food & Beverage: For hygienic sealing in processing and packaging machinery.
• Transport & Rail: In braking systems, fuel handling, and cooling systems.
• Construction & Civil: For sealing water pipelines, pumps, and heavy equipment.
• General Industrial: Across valves, tanks, compressors, and chemical systems.

Why choose Delta Rubber for custom fluid sealing solutions

With decades of experience in rubber moulding, Delta Rubber is a trusted manufacturer of high-performance seals built for fluid sealing applications. Our team works closely with clients to design and produce custom-moulded seals that meet exact technical and environmental requirements.

We use only top-grade materials, advanced moulding techniques, and strict quality control to ensure each seal performs reliably in harsh conditions. Whether you need a small production run or large-scale supply, we deliver durable, locally made solutions with fast turnaround and expert support.

Rubber seals FAQ

1. What are rubber seals used for in fluid systems?

Rubber seals are used to prevent fluid leaks and maintain pressure in systems such as pumps, pipes, valves, and tanks. They ensure reliable sealing in applications involving water, oil, chemicals, or other liquids.

2. Can Delta Rubber manufacture custom rubber seals for my equipment?

Yes. We specialize in custom-moulded seals based on your drawings, specifications, or samples. Our in-house team can help you design a seal suited to your specific fluid sealing requirements.

3. Which rubber materials are best for fluid sealing applications?

This depends on the type of fluid, temperature, and pressure involved. Common materials include EPDM for water, nitrile for oil and fuel, silicone for temperature extremes, and Viton for chemical resistance.

4. Do you supply seals in small or large quantities?

We manufacture both small production runs and large-volume orders. Whether you need a few prototypes or ongoing supply, we can accommodate your needs.

5. How long do rubber seals typically last?

Lifespan depends on factors like material type, operating conditions, and maintenance. With the right material and proper use, our seals are designed to perform reliably over long periods in industrial settings.

6. What industries do you supply with rubber fluid sealing solutions?

We serve clients in mining, agriculture, food and beverage, transport, construction, and general industry—anywhere fluid containment or transfer is critical.

Contact Delta Rubber for details

If you need reliable rubber manufacturers that specialise in a range of rubber components and seals used in various industrial applications, contact the team at Delta Rubber today.