“How much does the China injection molding cost to make my product?”;  “Is there any way to lower the mold cost in China?”. These are the most common questions we hear from our customers, especially start-ups. It’s quite understandable that the injection molding cost of a new plastic part is critical and sensitive, particularly when your budget is tight for a new design.

Mirror polishing adds cost to injection molding, which requires hardened steels (NAK 80 Steel) to create the molds and cleaner injection molding condition. Also, a higher texturing requirement is another reason to cost increases.

Its overall toughness, flexibility and heat resistance make polypropylene injection molding an ideal process in manufacturing consumer products, and FDA grades are appropriate for food, toy and medical applications. Its rigidity and tensile strength can be improved by adding talc, mineral or glass reinforcements.

Complexity plays a vital role in molding costs. It adds extra works to mold making and more steps on molding production. Tolerance requirements, fine detailing, or the number of undercuts are the main reasons.

The plastic molding material you selected will affect both tooling cost and piece pricing, which varies from different types of materials.

However, if your part is white or transparent, the molding price will be higher than other regular colors. A cleaner molding condition adds cost for molding factories.

Mold life affects mainly the tooling cost. Prototype molds use regular steels such as P20 or 718H. For production molds at higher volume, hardened steel would be required, like NAK 80 or H13.

Polypropylene injection molding is used in many applications and industries because of its beneficial thermal, chemical, physical and mechanical properties.

The part color is the factor that designers and product engineers will neglect, as they assume piece pricing of all colors is the same.

With fast and economical access to large amounts of PP thanks to long-term relationships with the industry’s top suppliers, Texas Injection Molding purchases and stores large quantities of PP in multiple silos, offering economies of scale we can pass along to our customers.

Texas Injection Molding processes standard injection molding, thin-and thick-walled molding and structural foam molding for standard and custom grades of PP.

Polypropylene is a low cost, lightweight polymer that has excellent chemical resistance.  Polypropylene is tough and has good resistance to fatigue and can be reinforced with glass fiber or minerals to enhance mechanical properties.

There are many factors that can affect the cost on making an mold and running molding production. Here we show you three examples how the various pricing might have. Please note that the price can vary depending on your parts size, weight and complexity.

Texas Injection Molding has extensive experience in polypropylene (PP) injection molding for a wide variety of applications such as caps and closures, plastic hinges, electrical housings, ice chests and coolers, buckets, pails, cups, kitchenware, and various other consumer goods, including OEMs for: