I have 3 different grades of mesh fine, medium and course. I really like the fine and the medium is good for heavier/thick powders. As I said I haven't been able to match the mesh I have up to what's in McMaster Carr.

I use the adhesive shown in the step by step, stretch it tight and stick it on flip it over and heavy weight on top of it and let it cure good.

If your talking the rounds from TJ's I don't know how he puts them on you'd have to email him.