Most compressors will give you at least 125 psi, the most important factor in selecting the right gun for you is to select a gun that matches your compressors CFM ( cubic foot per minute) this needs to be the free air driven figure (FAD) not the displacement figure used to sell the compressor which will be some 30% higher. For example a compressor with a 14 cfm displacement figure will give you around 10 cfm Free air driven (FAD)
LVLP : Low Volume Low Pressure spray guns, these work well with low CFM compressors eg. 6-9 cfm at low psi.
HVLP: High Volume low Pressure generally require more air volume CFM but at low pressure.
Conventional: Uses reasonably high volume of air and often a much higher air pressure, but great for atopmising paint.
Airless: Uses hydraulic pressure from a pump to compress the paint and spray through a single spray tip with no added air to atomise. Excellent for spraying high build coatings unthinned.
DIY Electric spray guns: Will spray low viscosity materials adequately but unable to atomise high build coatings sufficiently.
Rustbuster is a registered trade mark of Rustbuster Ltd, registered in the UK Trademark number 2211446 Class 02 & 37.
Any unlawful use of the Rustbuster name or logo or passing off will result in legal proceedings. Rustbuster Ltd UK registerered 3639350.