Polychem 7212-BA-75 Alkyd resin OPC Polymers Alkyd Resins >> Short-oil 100 solvent, n-butyl acetate and xylene POLYCHEM 7212-BA-75 is a short oil soya based chain stopped alkyd cut to 75% in butyl acetate. This product is low-HAP and can be formulated into HAP-free coatings (below 1% HAP). Farm implements & Equipment/ Metal product finishes/ Aerosol enamels Low-HAP, short oil soya based chain stopped alkyd. Used in HAP-free coatings such as farm implements and equipment, metal product finishes and aerosol enamels.