Best product for sanding down plaster?
I've plastered over a gap which is about 2" wide & 15" long, it's dry now & i've got lots of little dimples in it & that'll obviously show up badly when painted. I picked up some sand paper which has made everywhere smooth but it doesn't seem to be taking off any layers to get rid of the tiny dimples/holes.
Am i using the wrong type of paper? Not sure of the name but it was the yellow type, should i be using the black wet & dry stuff?
Thanks in advance. =)