BYK-MAX D 4221

BYK-MAX D 4221 by BYK is a wetting and dispersing additive in powder form for the production of color masterbatches. It is a highly functionalized polymer additive specially developed for optimum dispersion in conjunction with good throughput during the production of masterbatches. It has a low melting point and is therefore capable of efficiently wetting pigments prior to the fusing of the polymer carrier. It absorbs onto the pigment surface, thereby generating a steric stabilization that facilitates the dispersion of agglomerates and prevents agglomeration. It is also suitable for compounding siliceous fillers (talc, wollastonite, mica) in PA, PET and PBT. BYK-MAX D 4221 is designed for the dispersion of solids in PP, PE, PS, PA, ABS, PET and PBT. It complies with Regulation (EU) No. 10/2011. Recommended dosage levels is 5-15% in inorganic pigment, carbon black & titanium dioxide, 25-40% (organic pigment) 5% in blowing agent & filler (talc, wollastonite, mica). It has a shelf life of 36 months.