Body and Gloss - Precipitated Calcium Carbonate supports sustainable coating performance

摘要

Ultrafine preciptated calcium carbonates are typically used in adhesives and sealants to manage rheology and improve mechanical performance. This paper will give two examples how PCC can add value to coatings. Zero-Color paste for volume and weight control in tinting systems for DIY emulsion paints: It is well known that inorganic particles below 100 nm show translucent behavior in paint systems. Ultrafine PCC with homogenous particle size of 80 nm was tested in colorant pastes where it renders body to the paste while not influencing the color point. The new product is an ultrafine, coated PCC which is well dispersible and can be used in colorant pastes themselves or as a neutral color paste which can be added to tinting systems as needed.