Solvent-borne architectural decorative paints often exhibit poor acceptance of "universal colorants" due to surfactant migration between the colorants and the white pigment of the base paint. This mutual exchange of surfactants is the cause of flocculation in the tinted system. Possible methods for improving color acceptance will be discussed including formulation changes of the base paints and modifications to the colorant. A new, highly active cationic wetting and dispersing additive will be introduced that generally improves color acceptance of several types of solvent-borne decorative paints, just by post-addition to the base paint. The effect of concentration of this new additive, on color acceptance of paint bases will be discussed in detail, using typical alkyd and thermoplastic acrylic paints and commercially available universal colorants.
展开▼
