CRAYVALLAC® PA4 BA 20
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.
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