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Thanks guys. This is really depressing, i mean its not like there arent enough other things to go wrong making carbon fiber parts! I got decent pressure guage, cost me €40 so i think its a reliable bit of kit. It shows the pump is pulling full vacuum 30InHg/-1 bar. And still i get this crappy...

Thanks CP. Forgive me, im quite new to this work, what and where is the gasket on a vacuum pump? Also something i noticed attempting to degass yesterday (its still not right). When the pump is at max pull (which is possibly not full vacuum, thats my guess) there is little to no vapour coming out...

Thanks CP. Whn i stick my finger in the valve it still doesnt pull full vacuum (according to the guage) so some leak in the chamber lid setup can be eliminated. Should get my new guage tomorrow. If both guages show the same slightly less than full vacuum, then it has to be the pump right? Cheers!

Many thanks CP. So just drop a few drops of acetone on the resin, don't mix it in? I ordered a new pressure guage but i fear im clutching at straws here. Can these guages ever develop leaks? Cheers!!

Hi Im working on a carbon fiber project. I have a 4.5cfm 1/2 HP vacuum pump which worked fine until recently. I know what proper degassing is like. After 60/90 seconds bubbles form, rise, and collapse on themselves leaving only residual bubbles. Takes about 3 mins. What i have now, is that...