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PEEK (Polyetheretherketone) sheet is a high-performance, food-safe material with excellent chemical, dielectric, and radiation resistance. Fire-rated and self-extinguishing, it’s ideal for extreme conditions. Available in natural.

Why Choose PEEK?

PEEK offers exceptional performance in extreme conditions, with a wide temperature range (-50°C to +250°C), high mechanical strength, and excellent chemical, radiation, and creep resistance. It’s food-safe, fire-resistant, and ideal for replacing stainless steel in high-stress applications.

Key features and benefits

Outstanding temperature range: Performs reliably from -40°C to +250°C
Excellent creep resistance: Maintains shape and strength under constant stress
High mechanical strength: Ideal for high-load and high-stress applications
Very high dimensional stability: Holds tight tolerances during machining and use

Typical Applications

Bearings, Seals & O-Rings: Ideal for components that require low friction, wear resistance, and long-term durability under high loads.
Pump, Compressor & Piston Parts: Excellent for use in demanding mechanical systems where heat and pressure are factors.
Valves: Reliable in chemical, steam, and high-pressure systems due to PEEK’s stability and sealing properties.
Aerospace: Used in structural and non-structural components for its lightweight strength and flame resistance.
Medical Devices: Biocompatible and sterilisation-resistant, suitable for surgical tools and implants.
Automotive: Trusted for under-the-hood components that must endure heat, friction, and chemicals.
Oil & Gas Industry: Performs in extreme conditions, including high temperatures and corrosive environments.

Specific Gravity of 1.31

Denser than water, PEEK sinks but remains lightweight compared to metals — ideal for replacing metal components without sacrificing strength.

Manufacturing Process - Extrusion

PEEK sheets are produced through an extrusion process, where PEEK resin is heated to its melting point and extruded through a flat die to form a continuous sheet. The sheet is then cooled, cut, and, if necessary, thermoformed to the required thickness. This method ensures:

Exceptional dimensional accuracy
Uniform density and surface finish
High mechanical and thermal performance

This process results in a high-performance material with exceptional strength, chemical resistance, and thermal stability—making PEEK sheets ideal for demanding applications in aerospace, medical, automotive, and industrial sectors.

Cut to Size Bespoke Fabrication Services

Our cut to size service allows you to purchase PEEK sheets in the exact dimensions you need, without having to buy full, manufactured sheets. We don’t charge for cutting standard shapes and sizes listed on our website.

For more customised projects, we also offer bespoke fabrication services, including:

CNC Laser Cutting – For precise and intricate designs.
CNC Routing – Ideal for complex shapes and large-scale projects.
Engraving – Perfect for personalised or technical detailing.
Additional options – Such as drilled holes, rounded corners, and edge polishing for a professional finish.

Sustainability and Recycling

PEEK is fully recyclable through specialised processes, contributing to sustainability efforts. Its durability and long lifespan reduce the need for frequent replacements, making it an eco-friendly choice for industrial applications and reducing overall environmental impact.

Minimum panel size

250mm x 250mm

Maximum panel size

1000mm x 1000mm

Specific gravity

1.31 g/cm³

Water absorption till saturation 23°C

0.45%

Maximum service temp. Upper temp limit - Long term

250°C

Tensile strength

115 MPa

Fire performance

V-0 UL 94

Thickness Tolerance

PEEK Extruded Sheet Thickness Tolerance

Data sheets

PEEK

Colour availability & light transmission

Key

Standard

Non-standard

Not available

Out of stock

Limited stock

	5mm (LT)	6mm (LT)	8mm (LT)	10mm (LT)	12mm (LT)	16mm (LT)	20mm (LT)	25mm (LT)
Natural

We offer fast, tracked delivery across Europe, using recognised couriers including DHL.

Not shipping to Europe? Visit our UK store or North America store for delivery to your region.

Where we deliver

We currently deliver to Austria, Belgium, the Czech Republic, France, Germany, Greece, Ireland, Italy, the Netherlands, Poland, Portugal and Spain.

How delivery is priced

European delivery is priced by the size and weight of your panel, based on the band your order falls into:

Panel size (up to)	Weight (up to)	Delivery
500mm × 500mm	10kg	€15
750mm × 750mm	15kg	€20
1000mm × 1000mm	25kg	€25

Orders that exceed the weight allowance for their band are charged €1 per additional kg.

Delivery times

Delivery takes 5–7 working days.

Customs, import taxes and VAT

Our checkout meets EU customs and import requirements in full, so there are no surprises once your order ships. At checkout, you can choose how import taxes and duties are handled:

Delivered Duty Paid (DDP) — we collect and pay all import taxes and duties on your behalf. Your order arrives at your door with nothing more to pay.
Delivered At Place (DAP) — available to businesses with an EORI number. You act as the importer of record and settle any import VAT and duties directly.

Can I collect my order from Simply Plastics?

Yes, of course. Orders can be collected from our premises in Colchester, Essex. At the final stage of the checkout process there is a delivery option labelled "Collection/pickup" which is free. Once your order is complete, you will be notified by email along with our address and collection times.

I need my order urgently, can I pay for faster shipping?

Yes. We offer an express delivery service which aims to deliver all orders in 1-3 working days. Orders are delivered by a recognised courier company and may require a signature on delivery.

Do you have a minimum order charge or small order fee?

This is a question we are asked fairly regularly due to the previlance of either a minimum order charge or small order fee within the industry.

At Simply Plastics our approach has always been to treat all orders equally, small or large. We want all customers, new and existing, to be able to place orders with us confident that they are only paying for the products and materials that they require. We therefore do not have a minimum order charge or small order fee.

Is PEEK the best plastic to use in high temperatures?

In our Engineering Plastics range, PEEK has the highest temperature tolerance of 250°C.

Is PEEK stronger than metal?

PEEK can be stronger than some metals, especially when it comes to strength-to-weight ratio. Its high performance qualities allows PEEK to replace metals in engineering components.

Is PEEK waterproof?

Yes, PEEK is waterproof and has low water absorption, even in high humidity environments.

Is PEEK easy or difficult to bond?

PEEK is generally difficult to bond, and special adhesives or methods need to be used.

Why is PEEK so expensive?

Compared to other plastics, PEEK has a premium price because of its advance properties being a high-performance, speciality plastic, its high demand and it uses expensive raw materials in its complex and high temperature manufacturing process.

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