Hi. I use Vallejo paints through an Iwata airbrush without any issues - use the Vallejo dilutant to thin them down probably 50:50. However when I use Lifecolor I get real clogging issues unless they are water-thin and then I get issues of little coverage and paint pooling?? I use the Lifecolor thinner with them? Any advice? Thanks.

Love "life color" paints - they paint great out of my Iwata.

Use distilled water.

You should use to dilute them or their thinner or water (distilled or tap) with home screen washer. I've heard that a good ratio for the thinner is 50%water + 50% screen washer (somebody in italian modeller forums says that actually lifecolor thinner is nothing else than a common home screen washer very diffused here in Italy called "Vetril"...)
A good ratio for the paint is 60% thinner 40% paint because Lifecolor paints are a little bit thicker than the others acrylics enamels.You MUST mix VERY WELL THE PAINT BEFORE USING and you can't forget TO REMOVE THE DEBRIS OF DRIED PAINT FROM THE TOP. They could fall in the paint and they can clog your AB, especially if you use a 0.2 nozzle

They are very good paints with an excellent covering power , a wide range of colors (with Federal Standard references) and they are very resistant.
They just need to be managed more carefully

Don't use absolutely isopropyl alcohol to dilute them!

Aniway here you can find an useful link about paints dilutions


http://www.little-cars.co.uk/workbench49.pdf

cheers and good luck

Paul,
It sounds like your 50-50 ratio with Lifecolor thinner is correct. Perhaps try cranking down your pressure. I routinely shoot LC paints at about 12 psi ... really just a whisper. I get great coverage as long as I resist the urge to "hose" the model - then the puddling issues come to the fore. I always thin acrylics a bit more than standard, and thus have to ease off on the pressure accordingly to get the results I want.

Kirchoff