M311 is a pure physical matting agent designed to deliver stable and controllable gloss reduction without participating in chemical reactions. Unlike chemical matting systems, it does not consume epoxy groups, produces no smoke during curing, and shows excellent resistance to yellowing. M311 provides a minimum 3-degree matting effect while maintaining consistent film appearance and process stability. Its purely physical matting mechanism ensures predictable gloss control and makes it a more economical option compared with traditional chemical matting agents used in powder coatings.