Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
Yes you are right. You can pour emulsion through mesh to speed up the elimination of bubbles in a diazo or dual cure emulsion caused by mixing in the diazo. It also can filter out dried in emulsion chips from the lid that can cause lines in the coating process, or diazo that did not dissolve properly. The other cause of bubbles is coating too fast. Too many screen rooms coat by hand way to fast. An auto coat machine takes 6-8 seconds on a 23x31, yet most hand coaters coat in a second or two. This whips air into the emulsion and puts a bubble behind the mesh knuckle usually. A slow firm coat works better for more even EOM thickness and reduction of pinholes.
It's been a while for me personally, but after mixing, I would leave the lid slightly ajar overnight and in the morning, no bubbles.Steve
Quote from: Sbrem on August 28, 2017, 04:09:33 PMIt's been a while for me personally, but after mixing, I would leave the lid slightly ajar overnight and in the morning, no bubbles.SteveAnd Thanks Steve-That's exactly what I have done for 30 years. works great and ZERO mess