Search Results

Reinforced reaction injection molding (RRIM) has re-emerged as an important method in automotive exterior applications. Presently composite applications demand higher productivity and improved part performance. Stability at higher heat to endure E-coat oven bake, improvements in fillers yielding easier processing at high loading, improved toughness at high modulus, and higher productivity have already been realized with RRIM in Europe and NAFTA. Now the kinetics of one new material, Bayflex 190 is such that reaction is essentially complete at demold. In the past RRIM molded parts were required to be baked at 120°C and above to complete chemical reactions, attain complete physical properties, and de-gas parts prior to painting. In current E-coat applications postcure of 190°C is typical. Elimination of postcure means significant savings in energy, increased productivity, decreased handling and lower capital expense. Bayflex 190 polyurea attains virtually all properties at demold.