The Mapei Planitop X product is a one-component mortar that blends with original concrete color. It can be applied vertical, horizontal or overhead. The smooth finish product features Easy Glide Technology that makes it extremely easy to feather out. ...
install this first. If using a paint-on water-proofing membrane you do not need to install poly sheeting (it actually may be a bad idea to use both as moisture can be trapped between the moisture barriers.