DBfan187 said:how long does it take for plaster like that to set? like harden a little to where it's difficult to move/trowel?
From my vantage point just a few hours... this will vary from region and the mix:water ratio and how long the mixer runs :blah: I'd say a 3 hours and they were sock walking - they made it look easy... They worked the finish for hours and then did the acid wash. I read up on SGM install steps fully knowing that these guys like us all would have little tricks and shortcuts... For the most part these guys were on-point! If I recall there are at least 3 ways to remove the cream and reveal the aggregate on DB. The most desired brush technique, the common acid rinse w/drain, and the least desired wet wash; acid wash and leave acid in the pool for refill.
I kept my internet knowledge to myself for the most part and didnt hover over them