As a surface preparation product, LD1800 can help to strengthen your overly-porous or weak concrete surface. This product can help to extend the lifespan of your slab by helping to solidify the '"cream'" or top layer of your concrete. It does this by filling in many of the small voids in the concrete with liquid silicate that hardens slowly over time. It's a professional grade densifier taht is easy for any contractor to use.