High-temperature powder coatings differ from ordinary powder coatings, requiring temperatures above 400 degrees Celsius, addressing issues such as inadequate spraying and material waste in traditional coating processes for complex-shaped products. High-temperature powder coatings consist of over 15 types of formulation materials, including epoxy resins, silicone resins, and others mixed with smaller components, which are processed through a twin-screw extruder and then ground into powder. When used by downstream customers, high-temperature powder coatings are electrostatically attached to the product and form a coating through high-temperature curing. Currently, these products are still emerging, with a pressing need for improved wear resistance. Have you chosen a wear-resistant agent?
For conventional powder coatings, wax powder can be selected as a wear-resistant agent; however, for high-temperature powder coatings, the temperature resistance of wax powder is insufficient. Both high-temperature resistance and wear resistance are required, making the choice of a polymer-based organosilicon additive necessary. Silicone powder is an organosilicon powder additive composed of silica and polymerized silicone. When the molecular weight reaches a certain level, it can function as a wear-resistant agent. Previously, silicone powder was mainly used in thermoplastic plastics, while thermosetting mixtures were typically simply heated and stirred. Now, with the twin-screw mixing and granulation process for powder coatings, the challenge of using silicone powder in thermosetting plastics has been addressed, thus enabling the application of silicone powder.
