Hi Guys,

Quick question, I have read several times that it is difficult/impossible to infusive unidirectional carbon, especially in a thicker laminate.

I wanted to create a landing gear for a model plane, and I woul make it approx 3mm thick, using BOTH carbon spread tow (about 25mm wide) and a couple of layers of a fabric each side (either a 200gsm canvas, 2x2 twill, or satin harness weave).

Would it be possible to do this in infusion with the fabric on both sides of the "uni directional core"? Or would the resin not flow and/or permeate?

Below is a picture to show a similar finished product, one is pure uni and one is a mix (like i am planning).

I assume they are done in wetlay. Which I suppose would also be possible, but a bit heavier and less stiff.



Cheers People!

A alternative with Uni-directionals is conventional vacuum bagging. Much better consistency than wet lay but the problems with resin flow are eliminated as you are wetting out the layers by hand.

Another technique that works ok is 2 part matched mouldings with the fabric wet laid into the mould then the two sides g clamped together to press out some of the excess resin.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant