If your airless spray pump primes and pressurises but nothing happens when the trigger is pulled, and it is not the airless spray tip that is blocked, the actual spray gun hand piece could be where the problem is located.
The first thing that needs to be done is relieve all pressure from the airless spray system by opening the prime spray or bypass valve and turn the machine off.
Going over a surface immediately after airless spray painting with a paint roller is referred to as back rolling. There are a few reasons why back rolling with a paint roller is required in certain applications.
Replacement parts and accessories for airless paint sprayers can be expensive and locating the right parts and accessories can be difficult especially if your airless machine is an older model.
Properly identifying the brand and model of your airless spray machine is the only way to begin searching for the correct parts. Occasionally parts location can be further complicated by different brand airless spray gun hand pieces or airless spray tips being fitted. Many airless paint spray units are covered in paint which can make it even harder to identify the make and model.
Airless spray painting would be among the most popular methods used by professional painting contractors these days. Unlike conventional compressed air spray painting an airless spray gun has no compressed air involved in the atomisation of paint. A small airless spray tip restricts the flow of paint from the airless spray pump and as this high pressure flow of paint passes through the airless spray tip the paint is atomised into spray as the stream of paint strikes the atmosphere.
Airless spray tip blocking is annoying and can ruin the spray painted surface with spatter or heavy lines of paint. There are a few common reasons causing airless spray tips to block and one of the most common is a problem with filtration of the paint within the airless spray equipment.
Purchasing the correct airless spray paint equipment can be the difference between a successful airless spray painting job or spending the time you would have spent spray painting trying to complete the spray paint job with an inferior piece of airless spray equipment.
Tailing when spraying with an airless paint sprayer is a phenomena where two distinct heavier lines of paint appear on either edge of the paint spray pattern. Inside these heavier edge lines there may be no paint or very little paint before the spray pattern reappears and often becomes heavier towards the center.
Tailing with airless paint sprayers can be the result of several different factors or a combination of factors.
Serious injury can occur if an airless spray unit is not used correctly.
Even small handheld DIY airless spray guns reach pressures which can cause serious fluid injection injury. Never place any part of the body near nozzles or remove guards.
Always ensure that all components of your airless spray machine including airless paint spray hose, spray gun and airless spray tip are rated to a working pressure that exceeds the output of your airless spray pump.