| Master batch compounders manufacturers Master batch compounders manufacturersSilvergate Plastics Silvergate Plastics, though a medium sized business unit with a great deal of autonomy, is part of a multinational organization called The Vita Group and as such is backed by tremendous financial resources. . Silvergate manufactures colour and additive masterbatch. Colour masterbatch is the product that determines the colour in plastic mouldings, extrusions, sheets or films and additiv.. |