New Matting Agent Based on Modified Calcium Carbonate: Omyamatt®

Omyamatt®: New Modified Calcium Carbonate-Based Matting Agent for Water-Based Emulsion Paints

Next-generation modified calcium carbonates (MCC) provide highly effective matting properties. The highly optimized design of particle shape and surface structure, combined with controlled particle distribution and broad specific surface area, makes Omyamatt a powerful and efficient alternative to conventional matting agents. The unique "golf ball" shaped particle structure consists of a natural, high-purity calcium carbonate core and a hydroxyapatite (calcium phosphate hydroxide) shell that provides functional surface properties. Omyamatt can be used as a replacement for alternative matting agents. If formulating from scratch, it is an excellent choice. For best results, it is recommended to add it at the end of the dispersion phase (mill-base) or with reduced shear force.

Benefits

• High matting. • Increased opacity. • Does not affect color tone. • Increased abrasion resistance. • Better stain resistance. • Excellent powder flowability for easy application. • Supply security. • High product consistency. • Safe and non-hazardous to human health. • Environmentally friendly alternative due to low carbon footprint. • Better gloss resistance. Omyamatt has a 30% lower carbon footprint compared to flux-calcined diatomite matting agents and 36% lower compared to crushed, expanded perlite.   Matting agents generally have a significant impact on film surface roughness properties. Large particles improve matting characteristics, but if the maximum particle size is too high, it can lead to undesirable roughness. Omyamatt is designed to strike the right balance between matting efficiency and film surface smoothness. See our surface roughness measurements below. Looking for different matting performance or target applications beyond interior paints? Or facing supply issues with matting agents? Let us know, and we will contact you right away!  

Onur Eroğlu Director of Market Development and Innovation / Building Division Omya Madencilik