Unfilled PEEK is an outstanding engineering plastic, but for demanding applications, filled PEEK grades offer enhanced mechanical, thermal, or tribological properties. This guide covers the three most common PEEK filled grades — carbon-filled, glass-filled, and PTFE-filled — helping engineers select the optimal grade for their application.

A material datasheet is the primary technical document for evaluating engineering plastics. However, datasheets can be dense with information, and not all properties are equally relevant for every application. This guide helps engineers and procurement professionals identify the critical properties when reading datasheets for PEEK, POM, PPS, PEI, and PA66.

China’s engineering plastic manufacturing sector has evolved dramatically over the past decade. Today, Chinese manufacturers produce high-quality PEEK, POM, PPS, PEI, and PA66 stock shapes that meet international standards at competitive prices. This guide highlights the top 10 manufacturers shaping the industry in 2026.

As sustainability becomes a procurement criterion alongside performance and cost, questions about the recyclability and environmental impact of engineering plastics like PEEK are increasingly common. This guide examines the recycling landscape for high-performance polymers and what manufacturers are doing to reduce environmental impact.

Dimensional accuracy is critical when sourcing engineering plastic sheets for CNC machining and fabrication. Understanding tolerance standards helps engineers design parts that can be manufactured reliably and helps procurement teams specify materials correctly. This guide covers tolerance standards for PEEK, POM, PPS, PEI, and PA66 sheets.

While stock shapes — sheets, rods, and tubes — meet many application needs, custom-machined engineering plastic parts are essential when specific geometries, tolerances, or surface finishes are required. This guide covers the machining services, capabilities, and lead times you should expect from a quality engineering plastic machining partner.

When sourcing engineering plastics like PEEK, POM, or PPS, buyers often focus on material specifications while overlooking one critical factor: the manufacturer’s quality management system. ISO 9001 certification is the gold standard for manufacturing quality assurance, and choosing a certified supplier can prevent costly failures, recalls, and production delays.

POM (polyoxymethylene), also known as polyacetal or acetal, remains one of the most widely used engineering plastics in industrial applications. As we move through Q3 2026, POM sheet and rod buyers face evolving market conditions that affect pricing, availability, and procurement strategy.

PEEK (polyetheretherketone) is one of the most expensive engineering plastics on the market, with prices ranging from USD 80-200 per kilogram for stock shapes. Understanding what drives PEEK costs — and how to optimize sourcing — can save procurement teams thousands of dollars annually. This guide breaks down the seven primary cost factors for PEEK materials.

China has become the world’s largest producer of engineering plastics, offering competitive pricing, expanding production capacity, and improving quality standards. However, not all suppliers are created equal. Choosing the right engineering plastic supplier in China can mean the difference between consistent, high-quality material deliveries and costly production delays.