Silica improves processing and shelf-life
In the large-scale production of construction chemicals, AEROSIL® and SIPERNAT® silica are used as auxiliary to facilitate processing and improve storability. Substances such as polymers, cellulose ethers and superplasticizers, for example, require free flow and anticaking additives. Fine-particle silica powder is fed in during spray drying and forms a separating layer around the individual host particles reducing their stickiness. This ensures a continuous, efficient production process and prevents costly downtimes due to clogging in the system. During transport and storage, Evonik’s silica contributes to long shelf life by preventing particles from caking, even in warm environments and with temperature fluctuations.