How to make cold lay asphalt less porous?
I would use a sealer and sand, first I would pour the sealer on just enough to almost fill the area, then with clean dry sand sprinkle it on top and work it in so it looks black, when it drys it will be much smother and will not hold water like the porous surface will and the sand provides a binder and helps to reduce the “slick” or slippery texture. I have done this with hot tar and latex sealing blends.