I am sorry for my synthax or mistake in my redaction of the previous post, but the ratio is not 99%, i use normal ratio like yours. 99% is the concentration of the isopropyl alcool found in the puchased bottes at the drug store. Therefore the amoumt of water added is very low and modified the evaporation rate. Thanks for your input.WOW! Isopropyl Alcohol at 99% thinning ratio. That would give you very thin paint and very little colour coverage but yes the solvent evaporation would be fast. l use Tamiya and Gunze Mr Hobby acrylic model paints and normally thin with IPA approx 40-50% determined by colour as some colours can be thicker than others due to pigments used. Also the thinning ratio can be dependant on room temperature. ie warmth reduces the paint viscosity so will or may need less thinning with solvent. Colder rooms/climates will or may require additional solvent thinning. (if using aerosols put the can under your armpit to warm it up. The spray will be finer and spray much better) ---- Dry spray coating is when you spray a surface and the paint is virtually dry at the end of each gun pass. Therefore if you spray from the bow to the stern of your model in one move, by the time you get to the stern the paint is already touch dry at the bow section. Try masking up a piece of wood and have a practice. Use maybe half trigger to start with and you'll find it gets easier as you go along. Apologises if you end up using good paint but sometimes a little waste becomes not only productive but cheaper in the long run. ------ Hope I haven't confused you. Anything else please feel free to ask. Cheers.