Can't prevent pitholes


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BMac
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240 dry
Hanaldo
Hanaldo
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What grit are you sanding to?
Geteda
Geteda
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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 coat with lower viscocity resin.. the bubbles goes fast.

BMac
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Steve Broad - 8/12/2018 9:47:02 PM
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.

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 try again
Could it be possible I need to clean the carbon with alcohol after sanding. Maybe contamination is causing it.

Steve Broad
Steve Broad
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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.
BMac
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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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