e procurement of the airless spray gun for painting works related to hydro mechanical systems of the spk main dam eprocurement of the airless spray gun for painting works related to hydro mechanical systems of the spk main dam , airless spray gun for painting works related to hydromechanical systems of the spk main dam. high volume solid paints high viscosity coatings solvent less coatings epoxy paints & mastics polyurethane coatings zinc base coatings coltar epoxy & glassflex epoxy waterproof coatings sealants & adhesives spraying ratio : 78:1 output per minutes (ltrs) free flow : 9 air inlet pressure max. (kg/cm2) : 6 / 87 psi output fluid pressure max. (kg/cm2) : 468 / 6786 psi fluid inlet size : 1 1/4’’ bsp fluid outlet size : 3/8’’ bsp air inlet : 1/2’’ bsp weight : ~105 kg