Airless Paint Sprayers | Read About Using Airless Spray Guns

Airless Sprayers

Airless sprayers are an excellent method of applying decorative and protective paints or coatings to almost any surface quickly. Airless spray paint units when correctly setup are also capable of providing extremely high quality painted finishes.

Almost any type of paint or coating can be applied using an airless spray unit. Thin products such as stains, timber preservatives, lacquers, polyurethanes and enamels can be applied using an airless sprayer provided the correct filtration, spray tip and pressure setting is used.

Airless Sprayer Differences

There are so many different airless sprayer models available in the market place worldwide varying from entry level price through to airless spray pumps selling for thousands of dollars.

What is the real difference between all these different brands and models of airless spray painting units offered for sale?

Airless Spray Hose

Most airless spray equipment uses a high pressure paint hose between the airless pump and the airless spray gun, excluding handheld airless paint sprayers do not use high-pressure airless paint hose.

Excluding budget orientated DIY airless spray units which are often supplied with 25 feet or 7.5 m of airless paint spray hose the most common length found fitted standard to airless paint sprayers is 50 feet or 15 m in length. The most common internal diameter airless paint spray hose is 1/4 inch or 6 mm ID.

Blocked Airless Spray Gun

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.

Airless Spray Tip Designs

There are two predominant configurations of airless spray tips commonly available from most manufacturers these days. These two common configurations are either flat tips or reverse clean tips.

Another type of airless spray tip that is not seen as often these days is the adjustable airless spray tip.

Airless Piston Pump Packings

Piston airless spray painting pumps use seals of some type to maintain paint pressure and stop paint from leaking. The most common seals used in airless spray paint pumps are V packings.

V packings in an airless pump are stacked in opposite directions at either end of the piston but which direction is the correct way to install packings?

Airless Spray Backrolling

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 Airless Spray Parts

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.

New 2012 FieldLazer Range Announced

A new range of FieldLazer airless pump professional field marking equipment has been released by Graco for 2012. This new range of airless linemarking equipment designed specifically for sports fields features 4 models. Two walk behind models, the S100 and S200 are push machines, there is a model R300 available as a push model which has a seated ride behind option available as the R300 Complete and finally the G400 model is an all in one stand on self propelled sports field marking machine.

Air Assisted Airless Spray

Air assisted airless spray painting, as the name implies, is airless spray, assisted with compressed air atomisation. This mix of paint atomising technologies enables faster application rates than is possible with conventional or HVLP spray painting while achieving transfer efficiencies that rival, or some even argue, betters HVLP spray painting transfer efficiencies.

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