I have only had to thin faskolor a couple of times, had a bottle of light blue a few days ago that for some reason was very thick and the airbrush said no.......I did as faskolor recomend and thined it down with a little water, BUT you only need a very small amount, they say 1 tspn full per bottle

. so if you are mixing small amounts of paint you only need very small amounts of water. Works fine then.
Hope this helps, Other far better painters than me that are on here may say diffrent
__________________
Dave
www.norfolkbuggyclub.moonfruit.com
kyosho optima,Bosscat,Boomerang,,RB5 Vega,RB7,,RC12 5.2, TLR22-4,MP9,HB807T
Flask of tea & a rollup
Anglia model centre & CT Models
http://www.oople.com/forums/showthread.php?t=28117