This product is a great way to seal a floor and ensure no moisture ruins your new flooring install. On concrete it is 2 coats & on wood substrates it is 1 coat system. You will find that the loba pu-280 is the most afordable 1-part sealer on the market. You are also able to use glue on top of this product form Loba.
One-component waterproof primer for priming porous and non-porous subfloors and for rigidifying soft subfloor surfaces. WAKOL PU 280 Moisture Barrier is a premium moisture barrier for “green” concrete slabs and for concrete and offers two levels of moisture protection. One coat will block moisture up to 12 lbs. / 1000 sq.ft. / 24 hours or up to 90 % rH (ASTM F 2170-02). Two coats will block moisture up to 18 lbs. / 1000 sq.ft. / 24 hours or up to 98 % rH (ASTM F 2170-02). No moisture test required if the following conditions are met: The concrete must be surface dry, at least 28 days old, a surface temperature of ≥60°F, and must have an intact structural waterproofing membrane beneath the slab. WAKOL PU 280 Moisture Barrier may be used on radiant heated floors up to 6 lbs. / 1000 sq.ft. / 24 hours or up to 85 % rH (ASTM F 2170-02) prior to laying wood flooring.