CONTRIBUTING FACTORS THAT CAN CAUSE A BLOCKED OR RESTRICTED AIRLESS HOSE
There are plenty of factors that can affect spray patterns. If you are experiencing an uneven spray pattern, you can look into the tip size, incorrect selection of tip, the airless pump could be sucking in air, small spray hose ID, blocked filter mesh, insufficient pressure, too many spray lines could be attached, or the material being sprayed is too thick.
Make sure you are always thinking about the viscosity and volume solids before actually applying. As product data sheets are only to be used as a guide, they are a key resource for the correct spray application and the sizing of the spray tip.
Consistently checking your spray pattern can continue to keep you as efficient as possible.