Can't prevent pitholes


Can't prevent pitholes
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BMac
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BMac
posted 7 Years Ago HOT
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I have tried 3 times to put a final coat on my carbon skinned parts but I still keep getting air bubbles and pitholes.
I have sanded, cleaned, 3-1 mix and all new brushes etc. I'm using the xcr resin.
Below are the photos. Can anyone help.
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Can't prevent pitholes
BMac - 7 Years Ago
     I haven't done a lot of glossy carbon, but I have found that a light blow over with a heat gun can drive the bubbles out.
Steve Broad - 7 Years Ago
             I tried that. It does work but when the bubbles pop it leaves a small crater. Then I have to give it a brush but brushing seems to put more air bubbles in. Frustrating as I have to sand then down and...
BMac - 7 Years Ago
                 you must mix slowly about 3 minutes and then degas the resin to full vacuum about 4 minutes, the mixture / viscosity in this resin xcr is 856cps, it is easy to trap air. You can try to put a final...
Geteda - 7 Years Ago
     What grit are you sanding to?
Hanaldo - 7 Years Ago
     240 dry
BMac - 7 Years Ago

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