Hi,

I am currently making carbon fibre samples of different layers and using different methods.
I have managed to get a really good surface finish with hand lay-up but not with infusion (photo attached).
I saw someone post a similar question on the forum but he was using unidirectional so our problem might be different.



Following the videos you've made for infusion, the surface finish of all may samples are almost entirely dry as if there wasn't enough resin.
You've suggested to reduced the flow speed to allow the resin to get everywhere which I will try very soon.
However, my samples are pretty small (210x160mm) and I'm worried that it won't be enough.
Could the infusion spiral  be completely removed to allow a slower flow process ?

Any advice would be greatly appreciated!

Many thanks,
Philippine

I will see tomorrow once roughly 24hours have passed since infusing the part. I let the Epoxy and Hardener sit in front of a space heater rotating every 5 min or so to warm it up. Then after mixing I sat the mixing container in front of the heater as well rotating it to speed up degassing. Was the clearest and runniest Ive had it since starting products this winter season (its 20-40F here in the western US). After the part wetted out I mostly closed the vacuum valve to slow it down. Then I shut it off and allowed the pressure to pull some resin and bubbles (presumably from degassing) through into the catchpot. Then I capped off the exit and left the feed open for a moment, then capped it off as well. Before hand I waxed the part 6 layers and really took my time with it. Hopefully this will make the difference.