I have had outstanding results using disposable vacum cleaner bags for paint cup membranes.
They are designed for air movement through them, while filtering dust particles. Haven't had problems with pin holes, and the material is more substantial than coffee filters or paper bags. Won't melt like Nylon mesh.
Seems to have uniform air distribution through out the membrane surface .
Attach with carpenters glue, or glue of your choice.
Hope this is of help.
Dan Wadsworth Sr.
Old Hippy Brand Jigs