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 Part A to Parts B and C maintaining temperature and mixing. 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.