Originally Posted by audiosq
Oh alright.. I'll spray. What's the gun recommendation these days? Prefer not to go over $100. If I spray do I just increase the water to 32oz?
.........your too easy.
There are of course less expensive Sprayers....but as in most cases you get exactly what you pay for. There are a couple others that run up into the $130.00 range, and you get what you pay for with them as well. But we just got you on board the "Spray Train" so I'm not a'gonna push it!
Here is an essential tool:
The Wand above is on the order of a magnitude more effectiveat stirring / mixing paint than anything else you can consider buying..
Each coat is applied in a "Duster" Fashion.
Dusting on Paint consists of applying the paint in very rapidly applied coats that each take about 1 minute to apply and 15-25 min. to dry between applications. The secret being to apply the very loose, wet mix in incremental steps, each layer consisting of "Freckle-like dots of paint, each subsequent layer gradually filling in the spaces left behind. Over the course of the coats, the surfacegoes from looking freckled to looking completely uniform
The first step is to place the screen in the location it will inhabit (...if possible...) or to Tape off the area of the Wall to be sprayed. The surface should be as smooth and free of defects (...bumps-cracks-pits/pinholes-previous Roller Marks...) as possible, as any high contrast paint that is smoothly applied will tend to highlight such defects. Expanded PVC Foam board is a favorite material. 6 mm thick and as large as 60' x 120". Larger "ultra smooth" surfaces can be had by using Vinyl sheeting, Blackout Cloth....or my favorite...smoothed Drywall.
After placing / marking off the screen, you'll need to mask off the area surrounding the perimeter of the screen / frame with Plastic or paper sheeting. If the top of the screen is within 36" of the ceiling or a adjoining "right angle" wall, those surfaces should also be masked to at least 48" from the spraying location. (...Actually, it's best to mask any adjacent surface.) Loosely draped, thin plastic can cover any Furniture, and the Floor below the screen should have a Plastic 2 mil> Drop Cloth that stretches to at least 2'-3' to either side of the bottom of the screen.(...or to each side-wall...) A Ceiling can have9' x 12' x 0.7 mil Plastic applied using Thumbtacks and Blue Taped joint areas.
If the Screen is a material built onto / stretched across a Frame that makes the screen surface "stand off" the wall more than 1", then an effort should be made to level out the edge's "drop-off" using Cardboard strips or tightly stretched Plastic Sheeting (2 mil) so that the Spray will not "Vortex" (swirl) at the edge. That results in less paint being applied along such drop-off edges....and focusing more spray on such areas is NOT
what you want to do! (...Runs "will" occur!...
Of course before you press the trigger and shoot onto the screen, it is highly advisable that you determine paint viscosity through the drainage rate you see going through the Bag Filter. Drainage rate should be thus....you pour in the paint at the same rate you pour milk into a glass. The paint should start to fill up the depression on the Top of the Filter Bag, but at the 1/2 way point, the drainage rate catches up and the paint continues to strain through. Once you stop pouring, the paint level should recede fairly quickly. Go here on YouTube to view Duster Painting videos and Paint straining examples: https://www.youtube.com/channel/UCvSoeOH0cod9j71AoUsRsPA
After you have the thinned paint strained and loaded into the Gun's Cup, you need to determine just how fast / how much paint is coming out of the Gun. Get a spare piece of board and do some trial squirts. If after just 1 second of spraying in one location from 12" to 14" from the surface you should have a very discernible 12" tall stripe of paint. If 1 full second results in an immediate "wet" run of paint, you MUST strictly adhere to the following spraying directions!
Starting on either the right or left top of the area to be sprayed, and at least 8"-12" to the side, the Gun is held level to the surface at 14" away and so that fully 1/2 of the ensuing spray pattern is above the top edge of the screen area. Press the trigger and immediately start moving across the screen surface at a rate of 3' per second. Translated...that means your walking sideways at a normal pace....NOT slowly..and the Gun is following at that same pace.
After reaching the other side you continue on another 12" then drop down no more than the height of your Fist (4") and head back the opposite direction. Repeat continuously until you reach the bottom edge to the screen surface, and finish by again overlapping the bottom edge by at least 50-60%
Remember this...it's always better to apply too little and have to do another coat. Correcting Runs, or even dealing with what is known as Orange Peel (...too thick coatings...) is far more difficult than is simply applying another corrective coat. (...but note the following warning below...)
Stop. Do NOT EVER
immediately go back attempt to correct any weaker areas where you might have wavered. Let the dusted-on paint dry at least 15-25 minutes. Drying can be (...and should be...) assisted by by using a large, clean elevated Floor Fan or Pole Fan, and if possible, by raising the ambient room temperature to at least 70 degrees. ( 21 degrees Celsius) Those steps are what makes the screen dry quickly between Dusters....as fast as 15 minutes for the 1st 3-4 coats, and no more than 25-30 minutes for the 5th to 8th coats. Recently, some have experience full coverage with 6coats. Examine the screen carefully...if when viewed from every direction it looks uniformly coated....your done.
Lastly, revisiting the start...be not distressed at how "freckled" the Screen will look at even the 3rd or 4th coat. Dusting means applying spots of paint that dry very quickly, with each of the subsequent coats filling in the gaps left behind until after 7-8 coats the entire surface looks uniformly covered. (...this always bears repeating...)
That is it. The process is less involved (...and easier....) than reading / absorbing the directions...I assure you.
BUT...if you have ANY questions, ask before you squirt! Issue in the middle? Again...stop and ask before proceeding.
As I am apt to do, I have PM'd you a contact number should you need any "Real Time" advice during the mixing/straining/Painting process. The lag in answering posted pleas can be quite disconcerting.