Greg,

Most of this is from a previous post:

I don't like foam rollers, it seems like they just create microbubles (foam) in the epoxy. I use a short-bristle roller cover like the one that Rick (vk1nf) suggested a while back. The center tube is plastic and the bristles are semi-stiff nylon about 1/8" long, no foam or nap. The bristles seem to push the resin into the glass and keep the glass tight against the wood. I still use a squeegee to get rid of excess epoxy, but with these roller covers there usually isn't much excess. I buy them at Home Depot as adhesive rollers, but you could probably find something similar at other stores. These rollers don't create foam unless you press hard and roll back and forth quickly. I use them for glass wet-out and fill coats as well. They do leave some bubbles, but they are big superficial bubbles that are tipped-off easily. I have never experienced bubbles underneath the glass while using these rollers.

Pedro Almeida