Report Tamiya Liquid surface primer in Tools, Tips & Techniques Posted November 9, 2010 · Edited November 9, 2010 by SkyKing I've not used this product, but the Tamiya web site (http://www.tamiya.com/english/products/87096surface/index.htm) recommends Tamiya lacquer thinner, so it must be a lacquer-based product. Here's what someone else on another forum had to say about it: "I had big problems trying to spray it when thinning with normal automotive lacquer thinner - the stuff would dry in the air and form a powdery texture. Luckily you could rub it off easily with some alcohol since it never adhered that well to the surface. I then discovered Tamiya lacquer thinner - expensive stuff but it seems to dry slower and the powdering problem disappeared. When thinning the Tamiya liquid surface primer with the Tamiya lacquer thinner, I now get a satin/glossy finish that makes quite a nice base for further painting. I heard you can also use the Gunze levelling thinners, but haven't tried it myself."