I used this to glue cork tiles to a concrete floor. The concrete floor was partly clean and partly covered with old congoleum glue that we couldn't get rid of. Fastbond adheres well to both parts of the floor and is very easy to apply - simply roll over both surfaces with a paint roller, allow to dry for 15-30 minutes and then start laying the tiles. It stinks quite a bit, so open all the windows when using it indoors. The smell dissipates quickly after drying.