One component premium moisture barrier and primer for porous subfloors, non-porous subfloors, solidifying soft subfloor surfaces, “green” concrete slabs, concrete with residual moisture prior to installation of flooring.

One coat of WAKOL PU 280 Moisture Barrier will block moisture in concrete slabs up to12 lbs. /1000 sq. ft. / 24 hour (ASTM F 1869) or up to 90 % rH (ASTM F 2170-02).

Two coats of WAKOL PU 280 Moisture Barrier will block moisture in concrete slabs up to 18 lbs. / 1000 sq. ft. / 24 hours (ASTM F 1869) or up to 98 % rH (ASTM F 2170-02). Two Coats of WAKOL PU 280 Moisture Barrier can also be used to block moisture up to 6 lbs. / 1000 sq. ft. / 24 hours (ASTM F 1869) or up to 85 % rH (ASTM F 2170-02) over radiant heat.