So how do you finish plaster with a sponge refinaHi Tomo,
We supply a range of specialist sponges for plaster and render, here's a link to our online store:
Plastic trowels & Floats & Sponge Floats For Plastering & Rendering
For finishing plaster you'll want a fine sponge. There was a post I saw on here earlier that you mind find useful, look at the last post:
Hope that helps.