#1900 and #3140 AquaCoat Premium is a mastic type airless underbody coating and an asphalt base emulsion for use on transportation equipment such as trucks, buses, RV’s and trailers. Reinforced with selected mineral fillers and formulated with ductile asphalt, a heavy film thickness of 200 mils wet can be achieved without sagging. Dry to touch in 2 hours.