Mulch Lock Ready To Use Landscape Adhesive Sprayer features a patented formula of sticking agent which effectively secures mulch in place. This ready-to-use adhesive can be sprayed directly onto the mulch and as soon as it is applied, bonding activity will start working instantly. It helps reduce the risk of mulch washout to prevent the soil from being exposed which might result to erosion and growth of unwanted weeds. It also works for leaf piles, dirt, gravel, hay and straw, pebbles, pine straw, sand, shells, and wood chips. It has a white milky color, but will dry clear after application. It is very easy to use – simply shake, pump and spray! Product comes in 1.5 gallon ready to use spray bottle and covers up to 1,500 sq. ft.