CRAYVALLAC® PA4BA20 is a HAPs-free alternative to CRAYVALLAC® PA4X20. This rheology modifier is composed of a pre-activated amide wax dispersed in a mixture of butyl acetate and alcohol. This product enables the formulator to control both sedimentation and sag. Compared to CRAYVALLAC® PA3BA20, this product is specifically designed for coating applications demanding a high degree of transparency or gloss. CRAYVALLAC® PA4BA20 is best added to solvent-based industrial coatings following the pigment grind stage, where it provides good control of sedimentation and sag. When using a high-speed disperser, it is recommended that CRAYVALLAC® PA4BA20 be added during the final stages of production, when the coating has been partially thinned to a viscosity of approximately 600 - 800 mPa.s (ICI cone and plate at 10000s -1) and the peripheral speed reduced to approximately 4 ms-1. Too high a speed results in destruction of the active components.

1The data provided for these properties are typical values, intended only as guides, and should not be construed as sales specifications.

Please select a TDS Document link: