Here are the recommended spray nozzle sizes and pressure information for applying TotalBoat Lust spar varnish by various spray methods:
Pressure Pot
Pressure - Approximately 3.44-4.47 bar/50-65 psi (gun pressure) and 8-10 psi (pot pressure)
Tip Size - .89mm to 1.4mm (35-50 thousandths)
Airless Spray
Pressure - Approximately 170 bar/2500 psi
Tip Size - 33mm to .41mm (11-16 thousandths)
Siphon Cup
Pressure - Approximately 3.44-4.47 bar/50-65 psi (gun pressure)
Tip Size - 1.5mm to 1.8mm (60-70 thousandths)