When it comes to preventing leaks, ensuring airtight or watertight closures, and maintaining mechanical performance, seals and gaskets are essential components across countless industries. From manufacturing and automotive to construction and plumbing, the right sealing solution makes all the difference.

In this guide, we’ll explore what seals and gaskets are, the different types available, their common uses, and how to choose the right product for your needs. If you're sourcing high-quality gaskets and seals in the UK, Factory Yard has the solutions you need.

What Are Seals and Gaskets?

Though often used interchangeably, gaskets and seals serve slightly different purposes:

• A gasket is a mechanical component placed between two surfaces to prevent leakage of gases or liquids. It compresses to fill irregularities between surfaces and is commonly used in static applications (e.g., pipe flanges).

• A seal, on the other hand, is typically used in dynamic applications (e.g., rotating shafts or moving parts) to prevent fluid or gas leakage during motion.

Both are crucial in maintaining system integrity and ensuring safety, efficiency, and durability.

Types of Gaskets

There are many types of gaskets, each suited to specific environments and pressures:

1. Rubber Gaskets

Made from materials like EPDM, Nitrile, or Neoprene, rubber gaskets are flexible and resistant to water, oil, and chemicals.

Best for: Plumbing, HVAC systems, automotive

2. Cork Gaskets

Cork is naturally compressible and resists oil well, making it a popular choice for fuel and oil applications.

Best for: Engine components, fluid systems

3. Metal Gaskets

These are used in high-temperature, high-pressure environments. Types include spiral wound and ring-type joints (RTJs).

Best for: Industrial piping, petrochemical systems

4. Compressed Fibre Gaskets

A cost-effective, durable option made from aramid fibre or graphite-bound materials.

Best for: General industrial sealing needs

5. PTFE (Teflon) Gaskets

Highly resistant to chemicals and extreme temperatures, PTFE gaskets are ideal for corrosive environments.

Best for: Chemical processing, pharmaceutical applications

Types of Seals

Seals are typically used in more dynamic systems:

1. O-Rings

One of the most common sealing solutions, O-rings are used in everything from hydraulic systems to appliances.

Best for: Static and dynamic sealing in circular cross-sections

2. Lip Seals (Rotary Shaft Seals)

These keep lubricants in and contaminants out in rotating machinery.

Best for: Motors, pumps, gearboxes

3. Mechanical Seals

Used in pumps and compressors to prevent fluid leakage along rotating shafts.

Best for: Industrial and chemical process equipment

4. U-Cup and V-Ring Seals

Specialised seals for high-pressure hydraulic and pneumatic systems.

Common Applications of Seals and Gaskets

You’ll find gaskets and seals across various industries, including:

• Automotive and Transport – Engine components, transmissions, fuel systems

• Construction and HVAC – Pipe joints, duct systems, ventilation

• Manufacturing and Machinery – Pumps, compressors, flanges, valves

• Food & Beverage – Sanitary seals in processing equipment

• Pharmaceutical and Chemical – Non-reactive sealing in sensitive systems

How to Choose the Right Gasket or Seal?

When selecting the right product, consider these key factors:

Operating Temperature

Ensure the material can withstand the system’s temperature range.

Chemical Compatibility

For chemical exposure, opt for resistant materials like PTFE or Viton.

Pressure Rating

Higher pressures require robust solutions like metal gaskets or mechanical seals.

Movement or Vibration

For dynamic systems, flexible and durable seals are crucial.

Compliance Requirements

Food, medical, or cleanroom applications may require FDA or WRAS-approved materials.

Seals and Gaskets at Factory Yard

At Factory Yard, we stock an extensive range of gaskets and seals for industrial, commercial, and domestic use. Whether you need a simple rubber gasket or a high-performance shaft seal, we supply durable, reliable products designed for UK industry standards.

Large variety of materials and sizes
Suitable for dynamic and static applications
Fast UK delivery
Trade discounts available

Final Thoughts

Seals and gaskets may be small components, but their role is critical in preventing leaks, reducing wear, and maintaining efficiency in mechanical systems. Choosing the right sealing solution can improve performance, extend equipment life, and reduce maintenance costs.

Need help finding the right gasket or seal? Contact our experts at Factory Yard — we’re here to assist with product selection and technical advice.