By Steve Broad - 4/29/2020 8:33:49 AM
I have always assumed that perforated release film is for wet lay and non-perforated is for prepreg, as stated in the descriptions of the materials on EC's site.
However, I have just been discussing this issue with the Technical Director of a Composites manufacturer and he said:
"For oven cure (of prepreg), perforated release and breather gives best results".
I assumed that perforated would allow resin to leak out, but this appears not to be the case. It is all about getting the air out of the whole composite. For small items up to, say, a car door, then non-perforated is fine (but he would still use perforated), but larger projects (like my roof for example) he recommends using perforated for best results.
Opinions?
|
By Steve Broad - 4/30/2020 8:08:58 AM
Just checked with my prepreg supplier and they are recommending that I stick with the perforated release film, even at 80 deg C.
|
|