lacquer thinner is a great thinner for many (not all) acrylics. Its somewhat of a universal thinner. It is also a great thinner for enamels. I thin Tamiya acrylics 50/50 or more when airbrushing. The only acrylics I really thin with water are Vallejo's. I think Poly Scale with alcohol. I like some acrylic paints, but am not adverse to using enamels or lacquers as they still offer a lot of advantages over acrylics in specific instances.I've been useing acrilycs for close to 15 years now and have had no ill efects thinning them with water. And alcohol is for cleaning up painting booboos, as for laquer thinners they are not meant for acrilycs because acrilycs are water based paints and not laquer or enamel based paints.