Trying to figure out how to keep the bag to stay tight all the way through the infusion process. there’s absolutely no leaks before we start infusing the resin. But as soon as we open up the resin inlet line the inlet side/area of the bag loosens up and it really never get a tight until the resin starts to gel. Anyone have this issue or does anyone know how to fix this issue. I’m finding small pitting on the surface and only on the inlet side so i’m guessing g it’s happening from the bag being loose on that side.

I'd bet that the cleaning removed the spray adhesive from the surface and left you with the spray texture on the part. What spray tack did you use and are you sure you didn't use too much of it? Some (most) of them don't completely dissolve in epoxy and leave traces on the surface. I like to use the isotacker from sicomin against the mould of visible parts, and then aerofix 2 for consecutive layers, as the tack is much better.

never tried that one, we are using the fibertack and applying a very thin coat just to hold the material in place. And then using es99 to hold the rest in place.