LGM hit the nail on the head. K38 is almost considered a spray filler, we probably sell one or two gallons in a year's time. K36 is a much better choice over 38 for everday surfacing applications. If you are stuck with what you have for spray equipment go ahead and thin the 38 down with DT reducer - not lacquer thinner. Lacquer thinner, although having the capability to cut the product, is way too fast evaporating to use with a urethane product. Get yourself a quart of DT870 or 885 and have at it. Do not ever adjust the ratio of catalyst to product, those ratios are given for good reason.

Attached is a pic of my latest paint work. I did all the stage sound equipment for Carrie Underwood.

Dan
www.gocolours.com