Wal-Mart carries a grease splatter screen for cooking which is coarse and the permanent coffee filter is a fine screen. So it depends on the look you want to achieve and application. HTH.
When layering paint try to remember LEA:
1) Lacquer
2) Enamel
3) Acrylic
This works most of the time and is why it is so easy to detail/weather acrylic over top of lacquer or enamel. HTH
Indeed a great show and terrific bargains from the vendors. Only thing missing was the Modelhaus products. Made the trip with a couple of guys from Joplin and a newbie from Springfield. We had a great time.