These can ease paint application. Sag balancers, bodiers,
flow-control additives (leveling agents) and thixotropes will affect the rheology
(flow properties) and viscosity of wet paint films. Polyethylene oxide is used in
waterborne paints to enhance atomization at low air pressures. Spraying with low
air pressures reduces paint waste. Acrylic lacquers often contain cellulose acetate
butyrate (CAB), which eases breakup into spray droplets and improves wet paint
flow-out. CAB also holds the paint film “open” to reduce the tendency for solvent popping.