combine part A, heat to 75-80 C. combine part B with good agitation, and heat to 75-80 C. add part C to part B. slowly add jpart A to part B and C maintaining temperature and mixinhg. allow to mix 10 min at 75 C, then cool at 50 C and add part D. continue cooling. at 40 C, slowly add part E maintaining mixing, cool to room temperature.