Next week we try to infuse a canoe in flax fabric, a big challenge for me because it's my biggest project for so far. I made a few test panels to figure out the lay-up composition, but it was not completely perfect...
I had a few places where the surface was bad, but I have no idea what's the reason. I've worked with MTI hose and clamped off the resin tube when the epoxy reached the MTI. I infused at 13 mbar, so is it possible that the vacuum was to much? I did the infusion very slow, so I don't know what I best can change during the next test? The second picture is the backside where I've put some Corecel ribs, but here I think it was bridging from the peelply.
Is it common that they do a post-treatment after an infusion (sanding and varnishing)?