| Pigment dispersions Pigment dispersionsUK manufacturer of high quality, polymer specific, colour and additive masterbatches/concentrates in different physical forms for the plastics and allied industries. PWHall After more than 50 years in the plastics industry, P W Hall has established an unsurpassed reputation in the home and in export markets for the formulation and manufacture of colour and additive concentrates in a variety of physical forms to meet customers requirements every.. |