Mak valve in air brush opinions HP Highline w/ mac valve

[splake]

Thinking about buying a new Iwata, I see the HP Highline has the built in mac valve built in under the nose of the brush. If I have a mac valve on my hose, any idea why it would be beneficial to have it built on the brush ? I mean if I open it up and want to spray a heavy base coat, I would probably be changing colors any way to tighten the valve for more detail. Why would i need to turn the valve on the fly? Maybe the built in mac valve was meant for different applications than spraying kits.

Anyone use it , or have any thoughts?

T

[kevtk135]

Honestly I couldn't think of what I would need it for to paint scale models. Many paint techniques say a few light coats is more beneficial that one heavy one. Also I would check the specs of the paints your using. For me, using Vallejo, it says spray at no more than 20 psi.
I just upgraded to the Iwata eclipse, and between controlling the paint and air flow with just the button, and taking off the tip guard, I can get really close for really fine lines.
But hey, just my 2¢, if you want to get it and play with it, thats cool. Worse to worse you find you don't need it, and you can set it and leave it alone.

[splake]

thx KEV

[Nalissa2]

I use the Hi line series and I love the built in MAC valve. I find it invaluable.
Mainly because I increase the pressure every time I need to clean out the brush
between colors and then being able to dial it back in without going to the compressor.

The in line MAC valve is a thing of beauty for me.
I also find the MAC valves that you add on ie. on the hose or thereabouts doesn't work quite as well as the ones that are built in.

That being said, if you want to try one out I'd like to suggest a brand called Mr. Hobby. They are very affordable and spray just as good as the Iwatas.
The only "problem" is that they only have one standard paint cup size. However I find them a joy to use.

Here are a couple of pics and a link to purchase them.

I have no affiliation with them but found them to offer good service and pricing.




spraygunner.com or on amazon.

[splake]

thanks for the imput Susan

[ausf]

I have an HP-BC2 from 1986 that I still use today and a newisn HP-AH with a MAC valve. It may be habit from not having one all this time, but I never touch it. I have a regulator above the moisture trap that's right at my left hand that I can fine tune if necessary, but since most spraying is one type of paint on one type of subject, I thin all the same, I never need to adjust.