Limelite high impact finish tips please. Hi have not used this stuff in years have layed on Limelite renovating backing plaster and intend to leave for a couple of days before skimming with high impact finish. As I said haven't used the stuff for 15 or more years understand it hangs for quite a while is it best to lay on and leave for an hour or so before flattening and second coating then then leaving again before troweling up TIA.