I am about to start my first resin infusion experiment which is a case with four 90 degrees rounded corners. 

I presume you mean a cuboid type shape?? You might be able to get it in there if its not too deep.  Spray tack would help hold it in place.

If its a deep shape, you might be better off trying to use something like profinish and a spray tack as you can make neat and clean cuts in it at the corners.

You could try it using vacuum alone but id suggest youd need a edge tool to force the material into the edges at the very least.


In an ideal world youd use pre-preg as by comparison its dead easy to lay up compared to normal fabric in such complicated shapes as you can make simple templates to cut the material exactly how you want it.  But it can be quite expensive for the hobby laminator.

When you draw a vacuum do not allow it to pull down tight at all.

So start to draw down the bag and stop the vacuum and then shove the carbon and peelply and infusion mesh into the corners the best you can.

Now draw down abit more vacuum stop and repeat pushing the materials into the corners.

Repeat in steps and you will feel the corners are in snug by the time you get full vacuum.

What ever you do make sure the mold is warm and the infusion resin is also warm before you infuse.

Hope this helps.

Fred