Yeh, always a risk to move the mould after the infusion. I always cut the hoses off just above the clamp, to limit movement. 

Yesterdays bagging attempt was much better, until about 45 mins after infusion I thought it would be a good idea to move it onto an electric blanket, then the feed line decided to leak. Oh well another lesson learned.

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You don't want any water inside your bag, not your friend.

what about using soapy water on the outside to look for leaks?

Envelope bags for the win if possible.

Can save a whole lot of messing around, lay the bag on a flat surface lay down some gum tape on the edges seal one side of the bag then slip your mould into the bag with input/output silicone connectors in place with a bit of gum tape, then seal the second side. Install the input/output lines and job done, time for a drop test

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David Stevens
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Hi guys, I have just layed up a mould and bagged it, but this time being super careful about having creases in the bag where it meets the gum tape, I pulled a vac on it and with a few small leaks quickly solved by pressing on the gum tape it seems to be holding vacuum. woohoo.

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Thanks for the reply, I am using EC bagging tape and the everything I have came from them.  The tape seems fairly tacky but when inspecting the bag up close it did look like it had a tiny amount of damage.  will be trying another one later today.

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It really is all about experience. You learn to spot a leak before you even pull the bag down. Quality materials help too, make sure you are using a nice soft and very tacky bagging tape. I used to use a General Sealants bagging tape that was so hard and non-tacky that you could remove it from the bag after use and roll it back up, freakin awful stuff. While using this, I thought a leak free bag was a myth, couldn't even get an envelope bag to seal! Changed over to the black Cytec stuff, and these days I very rarely have to do any checking for leaks, it all just seals so nicely. 

Thanks for the reply's, I will try and get my second mould finished and will bag it and try leaving it longer, but how do you guys normally locate micro leaks, thought about getting a leak detector but will it detect leaks that are unable to be heard by the ear. 

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Hi Lee,