Have you sen a spec sheet for it ? It says "VOC classification 2004/42 Cat A (i) for brush or airless spray application. Do not add thinners" It also says brush or airless sprayer 75 microns thick coat. At the end of the sheet it says "Conventional spray Thin up to 15% with Thinner, but 2 to 3 coats must be applied to achieve the recommended dft" Try some cheap gunwash in a small container to see if it curdles or get some 1k Nitro fast thinners to dry it quicker.