SuperSpark
New Member
Would appreciate some advice.
I printed several duplicates of a mini 3D Printed prop I designed. So far, I've resin coated and hand-painted 3 of them.
The first was painted with tamiya acrylic paints. For many reasons, this was a bad idea and I was told why later. However, I got it done and clear coated it with some Krylon Clear Coat spray to protect the prop and... Something weird happened.
I clear coated it, but it was like the paint was getting cooked and melting off it. I used a foam brush to clear out a glob of clear coat out of one area and the paint job, which had been done for several days, just melted right off where the brush was. Furthermore, because I would clear coat one side at one point and the other side the next day when it dried, I noticed that the melted paint pooled around the bottom, somewhat sticking it to its bed at parts and bleeding the melting paint into parts of the opposite side, which then forced me to paint it over and clear coat again. Clear coating the other side had the same problem, though it was tolerable due to one side only having one color.
For the second one, I someone recommend me Vallejo paints, so I only used Vallejo paint in my desired colours instead. Much easier to paint with. I also used a different clear coat spray by Tamiya, as it said it was specifically for plastics. I sprayed the backside first since it was a single color and... Same problem. The paint melted over and ruined part of the paint job on the opposite side. I've since repaired the paint job and painted the 3rd print... But now what?
My prop is painted with black, white, and metallic silver paints, both in tamiya and vellejo brands. Recently, I was told that metallic paint have all sorts of odd melty reactions with most clear coats, so this is also a possible factor, though I don't quite understand why.
Last time I painted and coated a 3d printed print prop I made was several years ago, but detailing didn't matter because it was spraypainted one color and the paint never seemed to melt off like that when I sprayed that same Krylon clear coat. There is actual detail on this print and because of that, I've had to repaint these, the first one especially, several times. I'm not very knowledgeable with paints and a bit afraid of continuing to clear coat them without understanding what's going on. I don't want to have to fight with repainting this again.
Why is the dry paint is melting off the print from the clear coat? What can I do to stop it? How can I seal it?
I printed several duplicates of a mini 3D Printed prop I designed. So far, I've resin coated and hand-painted 3 of them.
The first was painted with tamiya acrylic paints. For many reasons, this was a bad idea and I was told why later. However, I got it done and clear coated it with some Krylon Clear Coat spray to protect the prop and... Something weird happened.
I clear coated it, but it was like the paint was getting cooked and melting off it. I used a foam brush to clear out a glob of clear coat out of one area and the paint job, which had been done for several days, just melted right off where the brush was. Furthermore, because I would clear coat one side at one point and the other side the next day when it dried, I noticed that the melted paint pooled around the bottom, somewhat sticking it to its bed at parts and bleeding the melting paint into parts of the opposite side, which then forced me to paint it over and clear coat again. Clear coating the other side had the same problem, though it was tolerable due to one side only having one color.
For the second one, I someone recommend me Vallejo paints, so I only used Vallejo paint in my desired colours instead. Much easier to paint with. I also used a different clear coat spray by Tamiya, as it said it was specifically for plastics. I sprayed the backside first since it was a single color and... Same problem. The paint melted over and ruined part of the paint job on the opposite side. I've since repaired the paint job and painted the 3rd print... But now what?
My prop is painted with black, white, and metallic silver paints, both in tamiya and vellejo brands. Recently, I was told that metallic paint have all sorts of odd melty reactions with most clear coats, so this is also a possible factor, though I don't quite understand why.
Last time I painted and coated a 3d printed print prop I made was several years ago, but detailing didn't matter because it was spraypainted one color and the paint never seemed to melt off like that when I sprayed that same Krylon clear coat. There is actual detail on this print and because of that, I've had to repaint these, the first one especially, several times. I'm not very knowledgeable with paints and a bit afraid of continuing to clear coat them without understanding what's going on. I don't want to have to fight with repainting this again.
Why is the dry paint is melting off the print from the clear coat? What can I do to stop it? How can I seal it?
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