Newbie hints for getting an infusion part to wet-out everywhere


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stuart321
stuart321
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For my first parts I've infused 2 partial door cards for a rally car and on both I had the issue that the resin reached the vacuum line before the whole part had wetted out - in fact on one I had to reposition the vacuum connector on the fly to encourage resin to flow onto the dry patch.  Looks like they have both been salvaged but some pointers on how to make this smoother would really help.

Mould is steel coated with easylease, GC50 gelcoat, 2 layers 295gsm CF, peelply, infusion mesh, bagging film.
The part is 600mm base x 400mm high on one side, 170mm on other with a 75mm flange on the short vertical and sloped top side (rectangle with triangle on top).
I'm using resin quantities as per the resin calc guide (accounting for the mesh and material), the resin entry is one end of the part, the vacuum connector at the other end (almost 600mm separation).
On the first part I located the vacuum connector on the flange - the resin ran round the 2 flanged sides but had only wetted out 2/3 of the main panel.
So for #2 I removed some of the infusion mesh on the flat panel and put the vacuum connector at the far side of the flat panel - this time the flange had a triangle about 150x70 where the resin didn't make it to until I relocated the vacuum connector and pulled resin in that direction.

The next part is a bonnet - I'm thinking 2 vacuum points in corners might be prudent given experience so far...

Thoughts?
Thanks in advance
Stuart
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