PEEK material at YiguProto
PEEK machined or molded by YiguProto

Material

PEEK — Injection Molding Materials

PEEK is a high-performance plastic. We mold it into heat- and chemical-proof parts.

Overview

What Is PEEK Injection Molding?

PEEK is a high-performance plastic. We mold it into heat- and chemical-proof parts.

Material: PEEK

PEEK (Polyetheretherketone) is a premium engineering plastic. It resists extreme heat, chemicals, and wear, and molds into precise parts.

Process: Injection Molding

We melt plastic resin and inject it into a steel mold to form identical parts.

Result: Repeatable Plastic Parts

High-volume parts with consistent size and finish, made to your drawing.

Specifications

PEEK Engineering Data

Typical reference values for PEEK through injection molding. Final numbers can vary with grade and part shape.

PropertyTypical Value
Material typePEEK (Polyetheretherketone)
Manufacturing processInjection Molding
Density1.32 g/cm³
Tensile strength90–100 MPa
Service temperature−50 to 250 °C
Standard finishesAs molded, painting, texturing

Values are typical reference data and may vary with grade, heat treatment, and part geometry. Tell us your needs and we will confirm exact specs.

Why PEEK

Why Choose PEEK for Injection Molding

Very Heat Resistant

Keeps strength up to 250 °C.

Chemical Resistant

Fights acids, solvents, and steam.

Wear Resistant

Low friction and long life.

Light vs Metal

Strong but much lighter than steel.

Material Options

PEEK Grades & Options

We stock common grades. Tell us your need and we will pick the right one.

Natural PEEK

The standard high-performance grade.

PEEK-GF (30%)

Glass-filled for stiffness.

PEEK-CF

Carbon-filled for strength.

How It Works

How We Make Your PEEK Part

From your file to a finished part in five clear steps. Start with a free quote.

Send Files & Get a Quote

Upload your 3D file and drawings. Get a quote with free DFM feedback, usually within 24 hours.

Design Review (DFM)

Our engineers check wall thickness, draft, and gates. We suggest changes that cut cost.

Mold Design & Making

We design and build the steel mold that shapes your part.

Injection & Cooling

We melt the resin and inject it into the mold, then cool and eject the part.

Inspect & Ship

We check dimensions and quality, then pack and ship worldwide.

Applications

Where PEEK Is Used

Aerospace Parts

Light, heat-proof components.

Medical Implants

Biocompatible, sterilizable.

Oil & Gas

Seals and parts for harsh service.

Semiconductor

Pure, stable tooling parts.

Design Tips

Easy Design Tips for Beginners

New to this process? These simple rules help your part turn out well and cost less.

Keep Walls Uniform

Use a steady wall thickness so the part fills evenly and warps less.

Add Draft Angles

A small draft (1–2°) on vertical faces helps the part release from the mold.

Plan for Shrinkage

Plastics shrink as they cool. We size the mold to land on your final dimensions.

Finishes

Surface Finishes for PEEK Parts

As Molded

The natural molded surface straight from the tool. Lowest cost.

Painting

A custom color coat for branding or looks.

Texturing

A matte or patterned surface for grip or style.

Clear Coat

A glossy protective layer for a premium look.

Why YiguProto

A Trusted Manufacturing Partner

We are a dedicated factory for injection molding. Every file is reviewed by engineers before production. Every part is inspected before shipping. Your designs stay private with us.

< 24h
Quote turnaround
No MOQ
One part or thousands
±0.005 mm
CNC tolerance
Free
DFM design review

FAQ

PEEK — Frequently Asked Questions

PEEK (Polyetheretherketone) is a premium engineering plastic. It resists extreme heat, chemicals, and wear, and molds into precise parts.
Injection molding melts plastic resin and injects it into a steel mold. It makes identical parts in high volume at low unit cost.
PEEK is a high-performance plastic. It resists extreme heat, chemicals, and wear, and is biocompatible.
PEEK reaches about 90–100 MPa tensile strength and holds up to 250 °C. Strong enough to replace metal in many parts.
Send us your files. Most quotes return within a few hours on workdays. We never take more than 24 hours.
There is no strict minimum. We make a single prototype or a full production run.
Yes. We treat all files and ideas as confidential. We sign NDAs when you need them.
Yes. Our engineers review your design and suggest changes that cut cost, improve quality, or speed up delivery.
As-molded, painting, texturing, and printing.
Yes — molded parts hold typical ±0.1–0.2 mm. We can post-machine key features for tighter needs.
Yes. We can make samples for your approval. The sample cost is credited back on a production order.

Ready to Make Your PEEK Part?

Send your 3D file and get a factory-direct quote with free DFM feedback within 24 hours.

Get a Quote Or email sales@yiguproto.com