Painting a big surface in a limited amount of time can be a very tedious job. You can choose various tools for this job, from brushes to rollers and now a more useful airless paint sprayer which uses pressure to move paint from its container through a tube, into a high-pressure hose, to a spray gun, and, finally, to the surface.
When I bought myself one I was wondering how I could do the work without it. The advantages for using this kind of tool is that you can cover your surface on time and with little amount of paint used. There are also disadvantages; one of them is that you can accidentally spray other unprotected objects like I did. I was painting outside and I hadn't taken in consideration the wind speed and direction and accidentally I have sprayed my car, fortunately I had the possibility to clean that with ease. You have to keep your sprayer at uniform distance from your wall or object with each pass to get the best coating. Before starting using one I recommend to spray over a test surface.
There are three types of paint sprayer based on the type of pump used.
1 - DIY paint sprayers with diaphragm pump
2 - paint sprayers with pump - this ones are good for thicker liquids
3 - double stroke piston units that can spray paint on both up and down piston strokes these could be considered professional.
Sprayed paint dry faster than the one is applied with traditional tools.
There are two indicators one is Gallons per minute (GPM) or liter per minute used to measure the flow of liquid through the pump and the second indicator is the maximum tip size supported.
If you need one for typical house paints, lacquer, varnish one best suited would be with up to .5 gpm.
For certain paints like the lacquer, the varnish, the typical house paints, the solid color stain, the block fillers, the smooth elastomeric, the light mastic and epoxy you might need one for .75-1gpm.
At the top of this are the ones over 1gpm that are used for mainly house paints, for solid color stain, for block fillers, for smooth and light textured elastomeric, mastic, dry fall and epoxy.
You can see that a good combination of these airless spray tips for general use would be a 311 for fine finishing and a 515 for production work.
After finishing your job you have to thoroughly clean your airless paint sprayer.
