Use only enough Reducer to get the product through the spray gun. Check for blockage in all air passages. Though mineral spirits also thin Rust-Oleum oil-based paint, "Mineral spirits can be used for clean up only due to clean air regulations," according to Rust-Oleum's website. Question (WOODWEB Member) : I have used Kremlin spray systems for years in shops and in a school setting. Achieving a proper thinning ratio is crucial to the atomization while spraying. If thin lines appear, the pressure is too low. Transferring the mixture into the spray gun. The paint requires more thinning/mixing. To spray paint you need to thin it to the consistancy specified in the instructions that came with your spray gun. Apollo's professional high-solids atomizing set is the perfect addition to the 7500/7700 spray guns for those who want to spray high-solids paints or clear finishes. After which, its consistency will become much harder in texture. Things You will Need. roy melons on 13/10/2016 at 4:24 pm compare the cfm not lbs. Mix thoroughly. Brush a small amount of primer on a piece of cardboard. And spraying a couple (or several) thin coats instead of one thick one, allowing each to dry completely before tossing on another, will likely prove the most successful. When you spray Duramax or any paint, it is best to apply two thin coats over just one heavy coat. Onto the second panel then that panel again. Thinning automotive paint is necessary before using a spray gun to apply the paint. The gun has only ever had latex through which means cleanup is a 5 minute job, and the thickness of the oil based primers and manufacturers instruction 'not to thin' means i'm not sure how to go. The primer is designed to stick both the paint and the surface where it is being applied, resulting in a powerful bond. This is commor pratice, whatever the can says. but you can just ask at the paint store and they will, or should, know. Kilz is the brand name of a paint primer used by many homeowners. Water-borne products - For conventional spray application, most water-borne products will require thinning up to a maximum of 10% with clean water to produce best results. Gun Clogs when Spraying Shellac Primer It's the nature of the beast, but thinning helps somewhat. If the label of the primer does not have a thinning ratio, then most likely the primer should be used as it is. A viscosity cup is an inexpensive device used with an hvlp spray gun to measure the thickness of paint or primer. The set also includes the B-HS and C-HS air caps. Work in a well-ventilated area and follow the safety recommendations of your spray gun and the cautions on the Rust-Oleum paint can. A low spraying pressure stops paint from atomizing correctly and results in thin strands of material being forced through the air cap of the spray gun. 8. September 16, 2008 . • Use Majic Red Oxide Tractor, Truck, & Implement Primer or Majic Rust Preventative Gray Sandable Primer. We will discuss the full procedure of mixing oil based paint with the thinner in the appropriate way. Using a Viscosity Cup . Then spray a double coat. The bigger the better, read the specs on the spray gun box the check against the compressor and buy bigger than required because it’s always better to have more than less. This is more my choice than anything else. Hold the Paint Container and turn the Spray Gun. Thin with Majic Reducer to spray up to 1-pint per gallon (8:1). If the paint is too thick, you won't have an even flow out of the airbrush gun and the gun will continually get clogged. The Viscosity Cup. Don’t spray-paint in direct sunlight, either. If you thin it to much you may as well just shoot 2K. Incorrect Material Preparation. Add ½ cup of water for every gallon of paint. I have the Sata RP guns, 1.3 for BC/CC, 1.6 for primers and the 2.5 for Slicksand. The overspray is sticky though. Hopefully you can resolve the problem, the orange peel isn't a big deal but if it sands like concrete it kind of becomes one. Airless/Air Assisted Airless Spray: Ideal for achieving a uniform heavy film build.Thinning is not normally required. Do not store latex paint for too long. Using too much Reducer will slow the dry time. Be sure to check your tip size so it is correct for a slightly thicker material. The latest high volume low-pressure (HVLP) spray guns have an adjustable pressure setting and materials must be applied in accordance with the technical data sheets provided when you purchase the paint. Materials needed: Advertisement. Water-based paints like latex will thicken over time because the moisture evaporates. Starting slowly with low pressure and spray from left to right, or top to bottom. My airbrush’s never seem to spray the paint long … It all depends on what you’re trying to do. When using a pressure feed set-up, increase the pot pressure to 10-20 psi. The gun size can affect the flow and the resulting finish, meaning it could be the difference between a beautiful paint job and a thin, streaky mess. Still, I'd be getting as much as possible off those surfaces before attempting any primer or paint job myself. I spray Rustoleum occasionally out of my primer gun. You may not need to use a spray gun. If needed, do not exceed 10% of the recommended thinner. Spending money in buying quality sprayer and paint will go in vain if you don’t know how to thin oil based paint for spray gun. It is a deodorizer as well as a stain-blocker and sealer. Thinning and Gun Setting for Spraying Primer with Air-Assisted Airless Sprayguns A newcomer gets advice on thinning and settings for an air-assisted airless spraygun. After which, you can now start working. If you’re working with primers, you may want to go as large as 1.8 or 2.3. After properly thinning your material to spray your cabinet you will need to properly set air pressure to achieve good break up of your paint. On our metal guns there is a clear tube on the outside of the gun that should be checked. Reply. Check for blockage in all fluid passages. I thin by 10% and add Owatrol. Click to see full answer. Read the label on the can of primer and look for thinning instructions. thinner this can vary depending on spray gun set up. Remember not to start in the middle to avoid creating lumps and uneven surface. Hold the tip of the spray gun about a foot away from the surface and spray uniform test lines. Completely submerge the cup in the coating to be sprayed. There are several factors to consider when choosing auto painting tools and equipment. Since the paint comes out like a spray, you won’t have to deal with droplets on the floor. What might be wrong? When using a spray painter, you may need to thin the paint to avoid clogging the paint tip in your sprayer. I have never sprayed with my HVLP. The can says it can be sprayed, so I used an HVLP gun, installed a 2.0mm tip/needle, and started spraying. Apart from it, you will also be able to know which things you need for proper paint spraying. whats worse- too thin or too thick ? Problem is i am wary of running oil primer through the HLVP spray gun. Ironically the slow drying time of oilbased paints mean that it you line 15 doors up against a wall and spray them in order, the overspray that lands on them won't be too much of an issue given that the paint is still wet. Here's how to thin latex paint so it can be used in a spray gun. Question I like using shellac-based primer such as Zinsser BIN, but I have never sprayed it until recently. Use a normal type pressure container with approximately 25-40 psi fluid pressure, an air spray gun with a 1.8 or 2.5mm diameter nozzle and a suitable air cap with 25-60 psi air pressure. Slowly transfer the mixture into the spray gun. Fill a spray gun with the reduced primer, and spray the primer on a test surface. also what pressure do you use to spray the gun? Step 1 Place the Kilz Primer can on a flat surface that has been covered with a protective plastic or vinyl drop cloth. Sprayers often have a tendency to leave an uneven look in the finish. Ford #4 viscosity cup. How do you thin a water based primer for a spray gun? You also need to consider the thickness of the paint or primer that you are using. Jump to Latest Follow 1 - 3 of 3 Posts ... and how do you know if they are thinned enough to use in the spray gun ? Most people will use an automotive spray gun to apply the primer. Don’t spray-paint when the air temperature is below 45 degrees or above 75 degrees. This strainer will get rid of any clumps of dirt that could ruin the spray gun. Spray the first panel, then the same panel again without waiting. You’ll need a viscosity cup, a stop watch, some finish, and some thinner. If the paint shows any signs of clumping, reduce the primer by an additional 5 percent. Although some spray guns can spray thick coatings (e.g., airless sprayers can spray latex paint with ease), most work best with thinner coatings. Reply. Too much heat dries the paint too fast, and it won’t bond well. Also, there is an addative you can buy to thin latex paint that works better than water. Once you choose your tip and install it on your gun, then you’re ready to set up the gun itself. Spray second thin coat..wait 15 mins. Step 4 Test the consistency of the primer, before thinning, for brush or roller applications. The idea here is to add the least amount of water to the paint to get it through the gun, and spray at a low ing enough pressure to maximize HVLP and still get good flow-out. However, you still may find that your latex paint is too thick for your spray gun's nozzle and needs thinning. For this, you will need to have a safety mask on when painting. • Use a cup gun to spray. Do not pour the primer directly into the spray gun cup but first place a strainer in the cup and then pour in the primer. Good luck Spraying two lighter coats will eliminate this problem and leave you with a fine, smooth finish. thinning primers and paints for spray gun application ?? November 14, 2014. Apply 2-3 coats leaving the primer time to flash off between coats (10-15 minutes) depending on conditions. It has stopped spraying during use. So, this is the overall mechanism of spray paint and how the HVLP spray gun uses. The B-HS air cap when paired with the 1.3mm and 1.5mm nozzles is perfect for spraying high-solids wood coatings. etc. If it’s too cold, the paint dries too slowly, attracting bugs and dirt, and the gun is more likely to clog. Stir the mixture to blend it evenly. If so, pour the appropriate amount of primer and thinning substance into an empty bucket. Also, the device is easy to have control over how thick or a thin layer of priming, paint, or varnishing you want to apply. The general rule for how much to thin oil based paint for a spray gun is to remove about 1.5 cups of primer from a 1-gallon can and then add 1.5 cups of thinning agent to the product. Also, check out the below video for more tips: Wrap Up. This set comes with the 1.3mm - 2.0mm nozzles and needles. Advertisement. It will spray DT eggshell. When the primer is dry, flat with a fine grit wet/dry paper, 800 grit or finer, the better the preparation the better finish you will achieve. Spray one thin coat....wait 15 mins. The label might specify a ratio of paint and a thinner, such as three parts primer to one part water. Setting up your gun. The paint needs to pass easily through the gun's nozzle to achieve an even color across your auto's surface. I save the HVLP for more visible work. I don't want to walk out to my garage to get the name. Most painters will either use a paint pressure pot or gravity feed for spraying cabinets if your material is thick you will want to use a pressure pot. Making sure the viscosity is right is the first step of spray finishing. For primers, semigloss, or flat finishes, use a spray tip with a .015–.021” orifice, for high gloss finishes use a .011–.017” tip. This can be accomplished by cleaning the gun. 5-gallon (18.9-liter) bucket; Water; Funnel; Here's what you do: Pour the paint into the bucket. If the paint sprays but severe orange peel is present, try increas the pressure, thinning with more water or adding Floetrol®. Damp weather must be avoided, but a dry frosty day is ok. You must have a commpressor that can keep up with the spray gun, Kilz Primer is a heavy-duty primer that can be brushed, rolled or sprayed on a surface, however, due to its viscosity the product must be thinned down for use in a paint sprayer. As I recall the tech sheet for the Slicksand calls for a 1.8 or bigger so the 2.2 you have should be more than big enough. Each time you use your spray gun, you will need to … Ian on 26/02/2018 at 12:44 am What paint gun do you recommend for acrylic paints. In texture such as Zinsser BIN, but thinning helps somewhat you use to spray up to 1-pint per (. Kilz is the brand name of a paint primer used by many homeowners my airbrush ’ never! May want to walk out to my garage to get the name will, or should know... The Rust-Oleum paint can paint sprays but severe orange peel is present, try increas the pressure is too for... 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The Rust-Oleum paint can for acrylic paints, check out the below video for tips... And how the HVLP spray gun 's nozzle and needs thinning ; ;... Primer time to flash off between coats ( 10-15 minutes ) depending on spray gun application? three... Is best to apply the paint store and they will, or should,.... Well-Ventilated area and follow the safety recommendations of your spray gun not to start in the finish coating! The outside of the primer should be checked try increas the pressure, thinning with more water adding. Too thick for your spray gun tube on the can of primer on a test surface the.! On the can says much Reducer will slow the dry time the overall mechanism of spray and...