Industry News, Science and Technology, and Market Insight
Novel cationic water-based primers offer superior stain blocking and are like solvent-based primers because many stains are blocked by the primer coat rather than being locked into the primer coat. For these cationic primers, however, manufacturing procedures and raw materials are different from those typically used in conventional anionic architectural coatings. This article discusses the properties that result when cationic epoxy ester and cationic acrylic are blended and their suitability for use in a universal stain blocking primer.
Expanding its range of Kalama® VITROFLEX® plasticizers, Emerald Kalama Chemical has launched Kalama VITROFLEX A90 and Kalama VITROFLEX A99. The products are used in the “A” (polymer) side of two-part polysulphide sealants, engineered to provide formulators with high performance, environmentally friendly alternatives to existing technologies. Additional information is available at www.emeraldkalama.com.
Nouryon has launched a redispersible polymer powder, Elotex HD2040, engineered to help customers producing dry-mix mortars for the building and construction market to meet the latest quality and sustainability requirements. The product is intended to provide excellent water and humidity resistance without compromising technical requirements such as adhesion or impact resistance. For details, visit www.elotex.com.