hi guys thank you for your answers, tried it over and over and now i'm having good results

doing exactly the same as dravis with a 95% succes rate

Matthieu Libeert
Founder MAT2 Composites X Sports
website: www.mat2composites.com

When you write "vents"  do you mean where the hoses go through the bag, into the silicone "connectors" ?

You're clearly doing something wrong at that point then .. i always place the silicone connectors inside the bag, and seal  up the bag, before puncturing it in the middle of the black silicone connector,

I make a small cross cut with a knife, no wider than the hole in the connector, then push the hose in, before winding some of the gum-tape around the hose just above the connector.

Make sure that you even out any creases in the vac-bag on top of the connector, then push the "ring" of gum-tape down onto the top.  then flatten it out on top to seal against the bag, and squeeze it tight around the hose..  That works nearly every time for me... but the first few times it did not always produce a perfect seal.  Like any of the processes in this "hobby" it takes a little practise.

I hope this is useful advice ...


Good luck!

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hi guys, i've bought a resin infusion starter kit, i followed the video tutorial but i'm failing to obtain the desired vacuum level. I can clearly hear a leak from the vents, i've tried several times to do the bagging from scartch, to use more gum tape around the tube, to put gut tape both inside and outside the bag, but still i've a huge leak, the gauge doesn't go under -0.5 bar. how can i improve vent sealing?