ACEMATT HK 440 is an extremely coarse-grained precipitated silica matting agent particularly suitable for pigmented systems requiring very low sheen. This highly efficient matting agent provides an ultra matte finish and is used in decorative and industrial applications. ACEMATT HK 440 delivers a non-reflective, flat appearance ideal for applications where a low gloss or matte coating is desired. It efficiently controls gloss and diffuses light reflection for a smooth, velvety look. As an untreated fumed silica, ACEMATT HK 440 has high purity and is chemically inert, stable and non-toxic, making it well-suited for products requiring durability and longevity of performance.