I just save old bottles of the thin when they're empty for other solutions like decanted flat / gloss Krylon Fusion which is more effective, and cheaper than small bottles. If you're looking for a truly fine application process, save yourself the waste of time and cement, and go with the touch n' flow from flexi-file. Great tool, and saved tremendously on wasted cement and sticky situations where fingers wind up leaving prints in plastic because of excessive build up.