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Old 09-23-2019, 10:29 AM
Quickstep192 Quickstep192 is offline
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Join Date: Aug 2002
Posts: 996
Default Air Hose for Spraying

I know this sounds silly, but I'm looking for input on what type of air hose people use with their finish spray guns. I was having trouble with oil getting in to my air and now that I've gotten a new, oil less compressor, I figured I'd get new hose in case the old hose was contaminated. For air tools, I've always used whatever I had on hand, but if I'm going to get new hose, I'll dedicate it to my spray rig. As I'm shopping, I see all kinds - Hybrid (whatever that is , polyurethane, PVC, polymer, rubber. My total run is only about 30 feet, so even the best stuff shouldn't break my budget.

Also, I'm assuming I should get 3/8" to ensure adequate air flow, but opinions on that are welcome too.

Does anyone have any favorite hose for using with a spray rig?
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Old 09-23-2019, 06:04 PM
mirwa mirwa is offline
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Join Date: Sep 2013
Posts: 2,263

3/8 hose of any type is more than sufficient.

Some things to think about,

the longer the hose the more the pressure drop, so if your setting pressure at a regulator at the compressor then pressure at the gun will be different on a 6ft hose and 12ft hose.

The longer the hose the better as it allows air to cool from the compressor before it hits the spray gun and fluid.

Store the hose suspended so this way it does not collect dust from the floor.

Whenever your about to spray, wipe down the last 2-3ft of hose with wax and grease removed just like cleaning your guitar, minimises and reduces the dust.

My setup.

40cfm air compressor 415volt mounted on 200 litte air tank
Pressure regulator on the wall to filter and trap water and set pressure
20ft Air hose to a reciever tank 500litres (cools the air)
From the reciever tank another pressure regulator for the gun pressure
Air hose 12ft long suspended from the ceiling in the paint booth
Spray gun

Cole Clark Fat Lady
Gretsch Electromatic
Martin CEO7
Maton Messiah
Taylor 814CE
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