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New Product Announcement: Marbled Injection Molding

Thursday, October 21, 2021

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Chemical company BASF recently announced the launch of a new technology to produce marbled serial components made of Ultrason using a standard injection molding process.

According to the company's press release, the technique has proven to be successful with the two injection-molding grades Ultrason E (PESU: polyethersulfone) and Ultrason P (PPSU: polyphenylsulfone). The new process “makes it possible to produce marbled molded parts on conventional injection molding machines more easily and with a greater degree of process reliability than before.”

Ultrason granules, which have a honey-colored tint, allow the shades to look like natural materials such as wood or marble. The coating effect reportedly can be used on household items (such as bowls, cups, plates and utensils), eyeglass frames, handles, electrical and electronical appliances, decorative panels and covers.

“Marble effects have always been an eye-catcher in the plastics world,” said Georg Graessel of Global Ultrason Business Development at BASF. “Until now, these effects were only possible with complex two-component injection molding and did not guarantee reproducibility. With marbling, we are adding another way of coloring to the already versatile design possibilities of Ultrason.

“With appropriate temperature control of the injection molding machine, attractive, high-contrast patterns are possible for our P and E injection molding grades. So far, our customers have been able to mold transparent, translucent and, of course, solid-colored components from Ultrason.”


Chemical company BASF recently announced the launch of a new technology to produce marbled serial components made of Ultrason using a standard injection molding process.

According to BASF, the polyarylethersulfone marbled components resist steam up to 180 C, provide toughness and strength across a wide temperature range, are resistant to industrial cleaning agents and repeated sterilization, and have the relevant food approvals for the EU and the U.S.

To achieve this marbling effect, BASF reports that injection molding machines are equipped with only one plasticizing unit and an open nozzle. The pre-colored base material and the high-contrast color masterbatch must be fed synchronously to the injection-molding cycle. The patterns in the molded part are then achieved by separating and merging the melt streams with 3D-printed nozzle inserts.


Tagged categories: Asia Pacific; BASF; Coating Materials; Coatings; Coatings Technology; Coatings Technology; Coatings technology; Color + Design; Design; EMEA (Europe, Middle East and Africa); Latin America; New Product Spotlight; North America; Z-Continents

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