Injection-moulded parts with wall thickness under 0.8 mm are generally considered thin-wall parts. Manufacturing thin-wall parts requires more precise tooling, higher injection pressures, better cooling, and more sophisticated ejection systems. However, the benefits of lighter parts translate not just to savings on raw materials, but also to the weight of the finished part, part cost, shipping, and environmental impact.

Examples of thin-wall injection moulded parts include disposables for food and medical applications, electronic device components or housings, and plastic packaging. Engineering Plastics offers thin-wall injection moulding services for part volumes from as few as 1,000 parts.