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Post by smccusker1 on Jun 7, 2020 16:49:13 GMT -5
Hello - I am playing around with different hybrid wood/epoxy castings and wanted to color the burl I am using. I am using Alumilite Clear and used an acrylic paint. I made sure to let the paint dry before casting. In this example there is air on both the painted and unpainted wood, but I was able to pre-heat a similar piece and the bubbles went away on the unpainted wood. Should I not use acrylic paint? I figure this would be similar to some of the plastic objects I've seen people embed. I am welcome any suggestions or thoughts! Thanks.  |
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Post by smccusker1 on Jun 7, 2020 19:30:21 GMT -5
Wood pre-heated before epoxy. No bubbles on wood but still over paint.  |
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Post by notoes on Jun 8, 2020 9:51:31 GMT -5
Acrylic paint is what you're supposed to use but since it did that, I'm wondering if it may have needed a bit of sealing first. You might want to try a "painted on" layer of the Clear, let that cure then embed them and that should give you no bubbles. Personally, I like both as is - the bubbles look like waves to me but that's just me and you probably had a specific look you wanted which they don't match and I know that will frustrate me when that kind of thing happens.
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Post by LawnBoy on Jun 8, 2020 14:06:19 GMT -5
That looks like entrained air to me.
You'll need to use a pressure pot, or degas the resin just before pouring with a vacuum chamber. I think pressure works better.
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Post by smccusker1 on Jun 8, 2020 22:33:44 GMT -5
That looks like entrained air to me. You'll need to use a pressure pot, or degas the resin just before pouring with a vacuum chamber. I think pressure works better. Forgot to mention that this was done with a pressure pot |
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Post by smccusker1 on Jun 8, 2020 22:34:32 GMT -5
Acrylic paint is what you're supposed to use but since it did that, I'm wondering if it may have needed a bit of sealing first. You might want to try a "painted on" layer of the Clear, let that cure then embed them and that should give you no bubbles. Personally, I like both as is - the bubbles look like waves to me but that's just me and you probably had a specific look you wanted which they don't match and I know that will frustrate me when that kind of thing happens. Funny you mention the waves because I am actually doing a boat in a bottle type project and that is how I am explaining away the bubbles for now  |
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Post by notoes on Jun 9, 2020 6:50:42 GMT -5
That IS funny You might have stumbled upon a look that might be helpful later on then. |
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