im not a real fan of the foam spray i just think it would be really hard to clean efficiently and no rocks ever look like that lol thats just imo. each to their own.
Yeah I don't think I'm a fan of it either to be honest.. First go at it though, and picking up a few more of the same sort of units so will be trial and error from here on in
i have used expanding foam as well and am not a fan of it i find the small gaps it leaves in-between too much of a pain in the butt to fill in with the liquid coats i prefer just using polystyrene and sanding\cutting it to shapes much easier\quicker to paint\seal afterwards
That's pretty cool how that's come out. Mine doesn't look that good, but I still reckon I've got a bit of a realistic look going on. Maybe a bit like cave walls...