In acrylic-based caulks, Santicizer®160 is the preferred plasticizer to reduce the Tg of the acrylic polymers used in caulks. Santicizer®160 is highly compatible with acrylic emulsions, allowing formulators to increase filler levels without sacrificing the physical performance of their caulks. Santicizer® provides caulk formulations with excellent weatherability, paintability and long term anti-fungal properties.