It is a paste used for the coloring of expanded polyurethane, characterized by a very high concentration of pigment. It is made by carbon black grinded in plasticizer, that do not belong to the phthalate group. It is suitable for the coloring of PU compound, both polyester and polyether, for the production of soles, integral foam for automotive and furniture, various objects in flexible foam. Formulated to have low viscosity, it is particularly suitable for the direct coloring into mixed head. The product is sensitive to temperature; too low temperatures significantly raise the viscosity. Brought to operating temperature, the viscosity return in specification. Used up to a maximum of 6%, does not change the characteristics of the foam.
IMPORTANT: it is necessary to check the compatibility of the product with the polyol, because a low compatibility might compromise the final yield of the color.