I have used latex and have worked on planes that were sprayed with it.....the problem lies with repairs....I do a lot of work for customers, and the biggest gripe I have with latex is the repairability.....it is difficult if not imposibe to "feather" the edge when doing spot repairs....it just doesn't feather nice.......different brands are better than others, but I don't like it for that reason......too bad, cauz it's easy to work with other than that......the Warbird Colors are my favorites, all the ease of use that latex offers, but it wet-sands easily and feathers nice, making spot repairs very easy.....