Precision Polyester Washers Manufactured in the UK
Bluemay Weston manufactures precision polyester washers to standard and bespoke specifications for customers across a wide range of industries. Produced using our punching and water jet cutting capabilities, polyester washers can be supplied in small development quantities through to high-volume production runs.
Polyester, often referred to as PET or PETP in engineering applications, is a strong and dimensionally stable material valued for its low moisture absorption, good electrical properties and resistance to many industrial environments. These properties make polyester washers a practical choice for electrical, mechanical, packaging, industrial and general engineering applications.
Strong, Stable and Low-Moisture Washer Material
Polyester washers offer a useful combination of stiffness, strength and dimensional stability. The material absorbs very little moisture, helping components retain their shape and performance more consistently than some alternative plastics in damp or humid conditions.
Polyester also offers good electrical insulating properties and resistance to many oils, greases and cleaning environments. Polyester washers are frequently specified where a reliable non-metallic washer is required for spacing, insulation, separation or light-duty sealing applications.
Manufactured to Your Specification
Bluemay Weston manufactures polyester washers in a wide range of sizes, thicknesses and configurations. Components can be produced from existing tooling where suitable, or manufactured to customer drawings and specifications.
Our extensive manufacturing experience enables us to supply polyester washers for applications requiring:
- Dimensional stability
- Electrical insulation
- Low moisture absorption
- Mechanical strength
- Good chemical resistance
- Precision spacing and separation
Polyester washers are supplied to customers throughout the UK and worldwide from our manufacturing facility in Devon.
Key Benefits of Polyester Washers
- Excellent dimensional stability
- Low moisture absorption
- Good electrical insulation
- Good mechanical strength
- Good resistance to many chemicals
- Lightweight alternative to metal
- Suitable for precision components
- Good wear characteristics
- Suitable for demanding industrial applications
- Available in standard and bespoke sizes
Common Applications for Polyester Washers
Polyester washers are commonly used in:
- Electrical assemblies
- Mechanical assemblies
- Packaging machinery
- Industrial equipment
- Automotive components
- Aerospace components
- Precision spacing applications
- Insulating washer applications
- General engineering assemblies
- Non-metallic component assemblies
Polyester Washer Characteristics
- Material: Polyester / PET / PETP
- Temperature Range: Typically -20°C to +115°C
- Electrical Insulation: Good
- Chemical Resistance: Good, depending on environment
- Water Absorption: Low
- Dimensional Stability: Excellent
- Manufacture: Punched and Water Jet Cut
- Availability: Standard and Bespoke Sizes
Frequently Asked Questions About Polyester Washers
Polyester washers are used in applications where dimensional stability, low moisture absorption, electrical insulation and reliable non-metallic separation are required. They are commonly found in electrical assemblies, mechanical components, packaging machinery, industrial equipment and general engineering applications.
Polyester is a family of polymer materials. In engineering washer applications, polyester often refers to PET or PETP, a strong and dimensionally stable material with low moisture absorption and good electrical insulating properties.
Polyester washers can typically operate within a temperature range of approximately -20°C to +115°C, although this can vary depending on the grade of material, washer thickness, load and operating environment. The application should always be reviewed where higher temperatures are involved.
Polyester offers good resistance to many oils, greases, solvents and industrial fluids, but it is not suitable for every chemical environment. Applications involving strong alkalis, prolonged hot water exposure or aggressive chemicals should be reviewed before specifying polyester washers.
Yes. Polyester has good electrical insulating properties and is often used in electrical and electronic assemblies. Polyester washers can provide non-metallic spacing, separation and insulation between components.
Yes. Bluemay Weston manufactures polyester washers in both standard and bespoke sizes. Components can be produced to customer drawings, dimensions or samples using punching and water jet cutting techniques.
Polyester washers generally offer lower moisture absorption and better dimensional stability than nylon washers. Nylon can be tougher and more flexible in some applications, whilst polyester is often selected where shape retention, low moisture absorption and electrical insulation are important.
Polyester has low water absorption and retains its dimensions well in many damp or humid environments. This makes polyester washers suitable for applications where moisture exposure could affect the performance of some other plastic materials.
Yes. Polyester washers can be used as insulating washers in suitable electrical and electronic assemblies. They provide a non-metallic barrier between components and can help with spacing, separation and electrical insulation.
Bluemay Weston can manufacture polyester washers in quantities ranging from prototypes and small development batches through to high-volume production runs of many thousands or millions of components, depending on customer requirements.
We are able to offer fast deliveries on components made from stock materials
Simply make a call to our Sales Team on 01769 574574, email us or complete the enquiry form for further information.
