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If your only getting -0.8 bar you are not at full vac, follow the EC instructions/video!
ABSOLUTE vac is needed for the infusion, you are technically going to "degas" the resin in the bagging stack and this can be observed by the bubbles in the bag moving faster than the resin. If you pay close attention to the feed and vac pipe/connector blocks you will see almost no bubbles collecting around these areas or in the pipes within the clamps if done correctly! Also pay attention to the areas that have 3 layers of mesh, usually at the feed and/or vac connections, almost no bubbles should be in these areas too, this will be a good indicator as to the final product.
I have just done an infusion with tinted blue resin and white diolen to show the process/bubbles clearly... I will post some pics soon...
Small pinholes can be fixed with the correct colour wax crayon, for carbon/diolen/carbon kevlar use black, it will not be a perfect solution but will stop dust and moisture from filling the voids and making the problem worse. Obviously you wouldn't do this on a performance part, but for a quick fix on a small household part this should be better than throwing it away!
Cheers,
Kev.
Update:
See pics. Notice the diolen is photographed in the negative and any imperfections/pinholes/voids would show as black spaces or dots... But its clean! Also note that the area around the vac connector block is free of bubbles, as was the feed connection area , this was made easy to observe with the blue resin...
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