BraggPeak Posted January 30, 2021 Share Posted January 30, 2021 Hi everyone, I am thinking about mixing the Gunze surfacer with thinner and store it in glass bottle with eye dropper. This way I don't need to mix them every time before airbushing, just pour it into the cup on the airbrush. Quite convenient, right ? Any downside or unexpected side effects with storing the pre-thinned Gunze primer for a long period of time ? I also have MRP which is pre-thinned acrylic lacquer. I noticed that if the bottle stay on the shelf for a long time, there is some separation of the pigment, but a vigorous shaking seems would solve the problem. Thanks for any input you may have on this ! Quote Link to post Share on other sites
AlienFrogModeller Posted January 30, 2021 Share Posted January 30, 2021 I have stored Mr Color Surfacer 1500 with Mr Color Leveler for short periods. I usually pre mix a substantial amount for my planned use. But that's as far as I go typically, I would not think there would be an issue. I have thinned out a multiple amount of Gunze paints with Mr Color Leveler for extended periods of time, some reached about a year or so. Never had an issue (discolorations, opacity etc) with them either after a vigorous shaking. Cheers AFM Quote Link to post Share on other sites
ESzczesniak Posted February 1, 2021 Share Posted February 1, 2021 I also mix it up in batches. I'm using Mr. Surfacer 1200 instead of 1500, but mix up 40 mL at a time (large Tamiya jar) and have not had problems. I usually go through this in 6-8 weeks, so it doesn't sit horribly long. I also do this for the colors I use frequently such as white, black, a basic gray; but in smaller batches (10 mL jars). I have not had any problem with these. I have also been doing this with clear gloss (Tamiya X-22) and had one batch yellow badly in the jar. I had several prior batches that were just fine and my most recent batch seems fine. So this may have reflected contamination or some other issue, but it did happen. Quote Link to post Share on other sites
crackerjazz Posted February 2, 2021 Share Posted February 2, 2021 That's something I'd like to try sometime. I've stored pre-mixed Gunze paint and notice some of them dry up quickly but it might help to store them up-side down to seal the caps? They also have a replenishing agent I'd like to try for dried up bottles: http://www.mr-hobby.com/en/itemDetail.php?iId=163 Quote Link to post Share on other sites
a4s4eva Posted February 3, 2021 Share Posted February 3, 2021 I thin it in the airbrush cup and just tip an excess back into the jar. I do this with paint and Mr Surfacer. never seen any point in doing otherwise I've also had yellowing of X 22, proably because I thinned with cheap hardware store thinner and tipped into the jar. I've also sparyed that mixture it doesn't dry anything but glossy and clear. Quote Link to post Share on other sites
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