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Features for July

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Monthly Tips for July

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Too much air pressure to the spray gun will give you poor transfer efficiency (TE), dry spray, wasted paint, and will blow paint back on the painter.
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Always clean your spray gun immediately after you finish painting.
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Remember to always use a proper respirator when mixing, spraying paint, and cleaning your equipment with solvents.


Previous Tips

April
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Be careful using silicone spray around painting operations as it might cause fish eye (small craters) to appear on the surface of the paint job.
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Test the size of your spray pattern and the amount of paint coming from the gun on a piece of test paper before painting.
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To prevent a poor paint job wipe off the excess dirt and dust on the parts after sanding.
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Use HVLP spray guns if the job calls for them to help increase your transfer efficiency.

May
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After mixing the paint take a viscosity reading (thickness of the paint) at the correct temperature with a viscosity cup and stop watch. Make sure to record these readings for future references.
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Always properly prepare the surface to be painted This will ensure the paint will stick to the material properly. Proper prep work is the key to a good paint job.
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Always wear an air supplied hood when spraying paint containing isocyanides. Going without an air supply may cause severe breathing problems.

June
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Always use a grounding strap on thinner containers, hazardous waste containers, and any other paint related items that require grounding wires.
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If you get paint or solvents in your eyes go to the eye wash station and flush your eyes clean for 10 to 15 minutes. Seek medical attention if needed.
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Never dispose of paint, solvents, or hazardous waste by dumping them down the drain or on the ground.

July
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Always clean your spray gun immediately after you finish painting.
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Remember to always use a proper respirator when mixing, spraying paint, and cleaning your equipment with solvents.
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Too much air pressure to the spray gun will give you poor transfer efficiency (TE), dry spray, wasted paint, and will blow paint back on the painter.

August
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Make sure you have the correct fluid nozzle, needle, and air cap to match the correct viscosity of paint you are spraying (thinner viscosity - smaller size, thicker viscosity - larger size).
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Match the size of your spray pattern to the size of the parts being painted
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Proper gun set up is the key to a consistent paint job. Air to the gun, volume of paint, and spray pattern size are all key settings.

September
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Always label unmarked containers as to the contents of that container. (type of paint, solvents, ect.)
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Always store you paint and thinners in the proper fire resistant cabinets.
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Always use proper gloves when handling solvents and paint. Materials will get into your blood stream.

October
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If paint is injected into your skin using an air assisted-airless sprayer get to the doctor immediately and take a MSDS (material safety data sheet) with you for the doctors to review.
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If you are using an air assisted-airless sprayer always use the trigger lock when changing the tip on the gun as not to get injected with materials.
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Try to wear old clothes and shoes when painting to save on your good ones.

November
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Once you are sensitized to paint, solvents, reducers and isocyanates, you will remain sensitized for a long period of time. You may need to be removed from the paint shop area for a period of time until you become desensitized.
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The term pot life is the amount of time you have to use that material before it becomes too thick. This applies to two component paints were a catalyst is added to the paint to help cure or harden the paint faster.
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Use the correct primer under the top coat to ensure a proper finish.

December
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3.5 lbs/gal VOC means there is 3 1/2 lbs of Volatile Organic Compounds in each gallon of that brand name paint.
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Parts have to be properly grounded when using electrostatic spray equipment and the gun to part distance has to be correct as well. Usually the spray distance is 9-12 inches or the paint will go to the nearest grounded surface, which in most cases is the
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The terms VOC and HAP refers to Volatile Organic Compounds and Hazardous Air Pollutants respectfully.

January
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Isocyanates found in the catalyst or paint hardeners can cause breathing problems so wear the proper respirator when using this product.
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Never let your spray gun soak in solvents for a long period of time. Doing so will damage the seals and packing in the gun.
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When painting cold parts apply a tack coat (half coat) first before you spray the full wet coat. This will keep the paint from running and sagging.

February
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After completely cleaning of your spray gun wipe the outside of the spray gun down with clean solvent to remove any residue.
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When cleaning your HVLP spray guns always do a final rinse with clean solvent from a squirt bottle because the contaminants in dirty solvent can settle in your gun.
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When finished cleaning your spray gun, hook up an air hose to your gun and blow out the excess solvent inside the gun so the packing and seals stay dry. This will keep the spray gun working properly for a long time.

March
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Always use the correct wrench provided by the manufacture to loosen and tighten the fluid nozzle as not to damage the tip of the fluid nozzle. A damaged fluid nozzle will change the shape of your spray pattern.
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Waterborne paint is better for the environment than a solvent base paint.
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When cleaning your spray gun take apart the gun in this order: 1) Air cap 2) Needle spring and needle 3) Fluid nozzle When done cleaning, assemble gun in this order: 1) ALWAYS put the fluid nozzle on first 2) Needle and needle spring 3) Air

April
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Waterborne paints have lower VOC (volatile organic compounds) and HAP (hazardous air pollutants) that are released into the air than solvent base paints.
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Waterborne paints need a longer flash off time for recoat than solvent base paints.
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Waterborne paints take longer to dry than solvent base paints.

May
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Only use enough air pressure (psi) to the spray gun that is needed to atomize that coating. Thinner paint requires less air pressure and thicker paint requires more air pressure to atomize the coating.
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Waterborne paints reduce the need to use solvents for clean up.
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When mixing paint or primer the term 'Reduction time' means you should wait that time after mixing before you apply that coating.

June
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Never leave two component paint in your equipment over a long period of time as the coating will harden up leaving the equipment useless.
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Two Component Coatings have an average pot life of 4 hours. That means after 4 hours you should stop using that product because it becomes too thick to spray.
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Waterborne paint uses water to reduce the coating instead of solvents reducing the VOC and HAP emissions released into the air.
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When mixing a two component coating you have to discard the remaining paint after you are done spraying because it will harden up making it useless.

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