They also do not last forever, but will last longer if you take care of them, than if you don't. For a water-based paint, flush cool water; for an oil-based paint, use lacquer thinner; for shellac, flush with denatured alcohol. When spraying poly, varnish, lacquer, shellac ect. Prep the Airless Sprayer and Paint. Although you may remember to clean up the paint mess more noticeably from the surroundings, you must also remember to thoroughly clean the spraying machine. Hold the airless paint sprayer gun (guard and spray tip removed) over the waste bucket and pull the trigger. Surface Preparation: All surfaces should be clean and free from dirt and oil and sanded as per instructions above. Wear NIOSH approved respirator and provide adequate ventilation. Place the siphon tube in cleaning solution Turn the power on to the paint sprayer Activate the trigger and keep it depressed until you see the cleaning fluid begin to flow out of the spray paint gun Continue to pump cleaner through the system until the fluid that flows through the gun is completely clear. – Adjusted the hell out of the gun. I’ve been using my Graco Nova 390 for several years now and have had amazing results with it. Let go of the trigger when paint is flowing in a steady stream from the gun. The Sprayer. Continue triggering airless spray gun into waste pail for 1-2 minutes, until relatively clear water comes out of gun. If you're spraying shellac-based primer you can clean the sprayer with ammonia or denatured alcohol. I clean with ammonia water mix approx 1/3. Most airless sprayers will come with a few selections, otherwise extra tips and be found at … Get the prayer ready for the project by first selecting the proper spray tip. The best time to clean spray tips is right after you're done flushing cleaner through the sprayer. Every once in a blue moon I may run some thinner through the sprayer and tips. The spray pattern also has a tendency to be hard to control but is manageable for experienced painters. General Finishes water based products can be sprayed through compressed air, HVLP, airless or C.A.S. The cleaning of water-soluble paint and spray material is done with tap water. TIP: Pam says, “If you plan to stop spraying for a short period of time, you can submerge the gun in a bucket of water or solvent if using oil paint. – Applied a thinner cut of shellac thinking perhaps the shellac was too thick. How to clean airless spray tips? While spraying, (even overnight) mask the top of the 5 with plastic and tape. We recommend Graco HVLP Spray Systems for the furniture or wood finishing ind If necessary, lukewarm water can be used. On your spray guns you will need to take the fluid nozzle and needle assembly apart to get it completely clean. It requires some prep and clean up every time but the finish results are worth it. 2. Some Graco airless sprayers have a hose attachment which can be used to aid in cleaning water-based paints (but not oil-based paints or stains). Jun 23, 2020 - Explore Nick Romero's board "Paint Sprayer", followed by 117 people on Pinterest. Graco airless sprayers make fast work of hard-to-paint surfaces and big jobs, but the spray tip is a weak link in the system -- the smallest piece of grit can plug it. Don't forget to clean your Graco spray tips after each use. units. The effectiveness of the airless paint sprayer over traditional brush and roller are enormous where application areas are large and extensive. At low pressure you can pump the remaining paint into the paint bucket, using the prime pump, until water comes. I probably spray half a gallon of water through the gun with the tip (I just keep reversing it a few times) in after the hose shows clear water. One of the downfalls of this primer is it’s super thin and dries super fast. I have done many fire restoration w/white pigmented shellac. I just clean them out when I am cleaning the sprayer out. Just let the spray tip sit in the container from 15 minutes up to 1 hour. with a HPLV sprayer how do you keep the sprayer from hardening up between coats? Switch the valve to the “spray” setting. No need to clean out you sprayer until the project is done. The airless paint sprayer is used for more convenient and neat painting. Step 1 - Choose the Cleaning Solvent All spray guns require that you flush the sprayer with a solvent after painting. To do this, put the suction of the airless device in the one bucket with water and allow it to draw water in. I use the foam roller to apply the majority of the surface and a cheap paintbrush if the tip of the r… One of the benefits of this primer is it’s super thin and dries super fast. Lock the trigger and follow the “Pressure Relief Steps.” But after the job is done, it is very important to clean the paint sprayer thoroughly, inside and out. Ammonia is a lot cheaper and safer to use. This professional-grade product works with both oil-based and water-based paint, and it can be used to transform virtually any room or … A tip that sprays between 1”-6” wide is ideal for spraying polyurethane and other finishes. For airless spraying use a 0.011"-0.013” tip at 800 to 1200 psi. If a conventional sprayer is used, spray at 45-55 psi. Some of these take some time to dry in between coats and cleaning out the sprayer in between every coat is not that efficient. Turn power switch OFF. For brushes, pour the material in a container and soak the brushes in it. An airless sprayer shoots paint out at high pressure, creates an even coat, works well in outdoor areas on large projects (think fences), and is quite noisy. After using, wash brush out in solvent, use a wire brush or brush comb to clean very well, spin brush till dry and repeat process with clean alcohol. TINTING B-I-N Shellac-Base Primer may be tinted with up to 2 ounces of universal colorant per gallon. From contributor R: First, before you use the brush, pre-wet with clean alcohol. Many Graco sprayers have a "wet cup" that must be kept one-third full of Throat Seal Liquid (TSL) in order to work properly. instructions when using spray equipment. Disassemble the gun and fill an empty bucket with two cups of paint thinner, adding the individual parts to soak in the bucket. Cleaning Graco Airless Spray Tips. Leaving paint inside the orifice of the spray tip clogs the hole when the paint dries, and next time you need to spray, the tip will be unusable. 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