Just thought I’d share how I use Mr Surfacer 1500 for priming models. I’ve come up with this through personal use and trying different mixes along with a bit of advice from Nigel at @NigelsModellingBench. There are obviously exceptions to this mix depending on room temperature and the age of your product but I’ve found as an overall rule of thumb you can’t really go wrong with this ratio of 1ml 1500 to 1.5ml thinners. Hope this helps some of you 👍