Question about Grex Ac1810-a - 1/8 Hp Portable Piston Compressor 120v

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I have a GREX 1/8 HP Portable Piston Compressor. Air flows through the airbrush but no product comes out (makeup). I have tried adjusting air pressure, check all connections, etc

Air flows through the airbrush but no product comes out (makeup). I have tried adjusting air pressure, check all connections, etc

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Find someone who uses this equipment, and have them check out your machine. Your makeup may be too clumpy or something.

Posted on Nov 26, 2013

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Posted on Jan 02, 2017

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Testors Blue Mini Modelers Airbrush Compressor


Air compressors are rated for a maximum pressure and maximum output flow. Your description implies more air is going out of the compressor than it's designed flow rate. Check for a major leak at hose fittings or around the compressor. If this is an old unit, a compressor gasket could be cracked or broken.

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1 Answer

Almost no air will come out of brush, very hard to blow through line


do solve problem by elimination:

1 disconnect pressure regulator from supply, start compressor and check for air flow, if flow is good, switch off
2. connect pressure regulator and start compressor, if it is equipped with automatic stop/start check cut off by closing valve in full, if it is without automatic stop/start then open slowly valve and check for air flow, if it increases - no problem there either, switch off
3. connect your hose to the outlet and switch compressor on, you should have similar pressure on the end of the hose as it was after regulator. if pressure is much lower - check for blockage in the hose, maybe gasket or something in the tube, cheap and nasty hoses have tendency to "k i n k" (this common english word describing twist in hose preventing liquid or gas flow is regarded as profanity by fixya - stupidity is without borders...) and puncture, clean or replace the hose, i use on some of my airbrushes these little lines from surgery (blood transfusion, oxygen, aquarium air, they are perfect! and - much cheaper - mostly for free than special airbrush lines).
4. check flow on airbrush, on fully open valve should be not much less than it was coming from regulator, if there is little or no flow, increase flow on the piece, it have usually depending on the type needle regulator on the valve.

hope this short instruction will help you, enjoy your art and if you find it useful, feel free to vote for it...

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1 Answer

Won't spray


There are a lot of variables while airbrushing. If you are having trouble with a new airbrush(or one that isn't hugely gunked up) you likely need to do 1 or both of the following to get it to spray the paint:
1) Thin your paint, use the correct medium based on the paint type. Water can be used to thin water-based paints but too much will result in a bad coat and finish. You are looking for a milk-slightly thicker than milker consistency.
2) Crank up the air through the airbrush. Assuming you have a regulator you may need to turn the pressure up to get thicker paints to spray. If you are using a siphon feed you may need a couple extra PSI to recoup for what you are losing from the syphon. Make sure to check the max pressure your airbrush can handle before cranking it too high(most can handle at least 30 PSI).
Hope this helps.

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1 Answer

Bubbles in color cup of airbrush


I assume you have adjusted the nozzle... On my unit, there is a SMALL hole in the cap for the cups to let in air above the paint. Also OFTEN the paint must be thinned to use in an airbrush. Since you havent been able to draw water even, thinning is NOT the problem.

The airbrush aspirates the paint by Bernouli's principle, that is where there is higher velocity of a fluid, there is a lower pressure. The nozzle creates that and the adjustment is important. On mine which is a "Wren", I think by Binks there is a conical piece that the paint comes out of with a throttling needle. This has the be unscrewed to open the paint path and adjust it. The air flows at high speed around this cone creating a vacuum.

The headline says "Eclipse" but that is a gravity feed so I suspect that is the old Fixya problem of having incomplete choices to pick from.

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Does this dental air compressor have a oil pressure safety switch?if so, where is it located? can I find a wiring diagram


Air compressors are designed to operate many different tools. The value of a commercial air compressor is many times greater than the purchase price because of the amount of work a single air compressor can perform. Dental air compressors are some of the most reliable because of the high-quality air they supply and precision tools they operate. As a result, dental air compressors can be adapted for a number of different tasks, including artistic air brush painting
1.Disconnect the air compressor from the dental tool air supply. Pressure and air supply rate-of-flow settings are different for air brush painting than for air delivery for dental tools.
2.Reset the air pressure on the tank to a range between 15 and 20 pounds per square inch (psi). The exact operating pressure for airbrush painting will vary, depending on the application and the type of paint used.
3.Reconnect an air-supply hose and a siphon style airbrush to the compressor.
4.Fill the airbrush's paint vile with lacquer-based paints. Test the air brush and paint performance on a piece of cardboard, or scrap piece of cloth
material before beginning the painting project. Every time the air compressor is connected to airbrush, or a new paint color is loaded into the brush, a short test spray should be performed. After each test adjust the air volume, and the paint flow in the gun to achieve the desired results8_16_2012_1_32_17_am.jpg

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1 Answer

How do you regulate the air pressure on FUWA AIRBRUSH COMPRESSOR


There is usually a regulator where the air coupling is. if not,just add one with some simple fittings and a regulator you can find at home depot in tool dept.

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