Well ok, I guess you have found what was wrong with that prepreg.
I keep track of its out time but I have one more question about it: how do shelf and shop life cumulate with each other (if they do cumulate at all)?
First, let me thank you very much for your comments.
I don't feel that the prepreg has changed since last month, but I may not be paying enough attention. I haven't bought any adhesive yet since the prepreg is probably expired as mentioned in several answers.
The press is applying pressure but...
I cleaned the surface of the foam with vacuum because it had small particles on it after machining, but I admit I didn't check if prepreg had reached RT before exposing the resin. It stayed at RT for maybe 10-15 minutes before I peeled the plastic, I wonder if this is enough.
This material was...
Actually what I forgot to say is that it used to bond perfectly just one month ago.
It's a carbon/epoxy Prepreg from Newport that I have been using since june. It was given to me by a teacher but he can't give me the reference so that's all I have... I don't think it is too old because it was...
Allcomposites,
I will be really interested into your feedback after testing. I am considering a few NDT solutions as well and should be trying Infra red imaging in the next few days (I am using sandwiches of small thickness)
Hello,
I am using M-Foam corecell with prepreg to create a small sandwich but the corecell doesn't bond to the prepreg at all. I am using a press at a temperature slightly above 100C, which shouldn't be a problem according to what I was told my the corecell seller.
Has anybody got any clue on...
I tried wax on my own but was not able to remove it completeley so sorry but I have no solution.
However, I have used the resin filled with micro-spheres with great success but would consider the flexible tooling rather than wax if I can't add anything in the honeycomb. I think you can...
