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Injection Post Molding Service

Post molding is also called secondary operation. After the product is formed, a series of follow-up operations are required to achieve the final effect. We can provide pad printing, hot stamping, ultrasonic welding, general assembly etc.

Pad Printing

Pad printing is one of the special printing methods.  Pad printing on custom plastic parts China can print text, graphics and images on the surface of irregular and heterogeneous objects, and pad printing on plastic is now becoming an important special printing. The surface printing of many electronic products is done by pad printing.

Ultrasonic Welding

Ultrasonic welding plastic uses high-frequency vibration waves to be transmitted to the surfaces of two objects to be welded. Under pressure of ultrasonic welding of plastic parts, the surfaces of the two objects are rubbed against each other to form a fusion between molecular layers.

Hot Stamping

Hot stamping is an emerging printing process. This process printing method is divided into two parts: transfer film printing and transfer processing. The transfer film printing adopts dot printing (resolution up to 300dpi), and the pattern is printed on the surface of the film in advance, which is suitable for mass production.

General Assembly

Injection molding supplies assembly happens when the produced plastic parts need to be assembled with other accessories, such as springs and metal buttons. Or assembling each other.


After mass production and general assembly, all the products will be packaged well per your request. For many years of packaging experience, Keyplast injection molding supplier optimizes and simplifies the packaging process in a time-saving and cost-efficient way. 

Your Injection Molding Expert!
We're here to help you for your any plastic injection molding needs.
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Office: NO. 3609 Wuyue Office Building 11, Huangyan, Taizhou, Zhejiang, China, 318020
Factory: No 328, Xiaoliqiao Beiyang Huangyan, Taizhou, Zhejiang, China 318020