Heat a to 80-85'C. Add b to a, maintaining the temperature at 75-80'C. Mix for five minutes. Prepare c by dispersing "Vancide" BN in one-half the water at 60'C. Add the "Veegum" T to one-half the water slowly, agitating continually until smooth. Add the dispersion of "Vancide" BN to the dispersion of "Veegum" T. Heat c to 80-85'C and add slowly.