Help with excessive draining!

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#1

Hi all, I have just been reading a thread started by CarbonMike about him getting air in his infusion. I think I am getting the same thing (excessive draining). Can you end up pulling the resin out of your part if you leave the pump on to long? How can I ajust the pressure of the vacuum pump? I can leave the part for over 24hours with no drop in HG so theres no leaks. This is mikes thread http://www.compositescentral.net/showthread.php?t=3582
He only says he clamps off the outlet tube once the part is infused. Would this leave excess resin in the part? Any help will be very helpful :slight_smile:

Just thought I would add there is some writing on the part I am making and the cloth doesn’t sit fully into it. Should this not just fill up with resin?

#2

end your infusion media and laminate before the vacuum source, have just peel ply connecting between vac and laminate

#3

sorry but I am not really sure what you mean?

#4

just have a few inches of space between your laminate and mesh and where you pull vacuum. use peelply to bridge the gap from vac source to laminate.

#5

How does that stop the resin being pulled out of the voids? sorry dont mean to sound rude I just like to understand how it works! Thanks.

#6

one layer of peelply has a low permability, but high enough to pull air out

#7

seems an easy fix thanks I will try that!