Walter Posted August 28, 2019 Share Posted August 28, 2019 Hello everyone, new to this forum. I have a question that I hope some of you can help me with. I am using Mr Hobby color acrylic paints and am having difficulty brushing on Mr Hobby clear acrylic as a final coat. What is happening is when I brush on the clear I notice it reacting to my paints almost immediately. It's frustrating because it ruins my paint work. If I apply a little too much the colour actually starts to run. I've tried diluting the clear with water but I think that makes it worse. The best technique so far is to brush once and quickly other than this method I'm at a loss. TIA Link to comment Share on other sites More sharing options...
Work In Progress Posted August 28, 2019 Share Posted August 28, 2019 (edited) Hello and welcome. I've never used these specific paints but just to help other respondents, how much drying / curing time have you been allowing for the base coat before you add the clear coat? Also when you answer that question can I suggest you repost this in the specific paint problems forum, which is here? https://www.britmodeller.com/forums/index.php?/forum/16-paint/ Edited August 28, 2019 by Work In Progress 1 Link to comment Share on other sites More sharing options...
FinnAndersen Posted August 28, 2019 Share Posted August 28, 2019 When painting with enamels, I always use an acrylic clear and vice versa with acrylic paints. That said, you may have been too impatient. as WIP also says. Link to comment Share on other sites More sharing options...
Walter Posted August 28, 2019 Author Share Posted August 28, 2019 Sorry about posting in the wrong spot. Thanks for the welcome. I've left the base coat for over 24 hours. Shouldn't clear acrylic work on top of base coat acrylic? Link to comment Share on other sites More sharing options...
Work In Progress Posted August 28, 2019 Share Posted August 28, 2019 It should, and always has for me but then I've never used this specific brand. Is this a water-based odourless polymer type of acrylic, or a solvent based type of acrylic similar to Tamiya? And what are you thinning it with? A polymer type water-based acrylic is an irreversible reaction when it goes off, and the chemistry does not permit another layer of water to soften the previous layer. - unlike solvent=based paints such as oil paints or cellulose paints. So I suspect there is another solvent in play here somehow. Examples of the water-based acrylics with which I've never had the slightest such problem - Xtracrylics, Revell Aqua, PollyScale, Aeromaster Warbird Colours, Games Workshop's Citadel range. Link to comment Share on other sites More sharing options...
Walter Posted August 28, 2019 Author Share Posted August 28, 2019 Ok looks like I'll need to investigate how Mr Hobby acrylic paints and clears are made. I'll ask the guy at the model shop. Link to comment Share on other sites More sharing options...
bmwh548 Posted August 28, 2019 Share Posted August 28, 2019 This is a solvent based product (smells identical to Tamiya to me). That might be the issue. Link to comment Share on other sites More sharing options...
sapperastro Posted August 28, 2019 Share Posted August 28, 2019 (edited) It is the same as Tamiya acrylic, so without additions like retarders, the fresh coat can easily reactivate and pull up the previous coat when brush painting. I would advise either going through the rigmarole of using an acrylic paint retarder, using a different acrylic paint (model master, revell, humbrol, etc) or enamels when brushing. Edited August 28, 2019 by sapperastro Link to comment Share on other sites More sharing options...
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