Polymer-modified graded sand for filling between interlocking pavers, brick, patio blocks, and concrete slabs. Once PowerLoc jointing sand is swept into the paver joints and dampened with a water mist, it hardens, locking pavers into place. Designed for commercial or homeowner applications. Resists weed growth, insects, and erosion. Stabilizes pavers. Nonstaining. Use for new paver installation or replacing existing joints. Each 50 lb. bag is enough for 16 to 64 sq. ft., depending on sand thickness ranging from 1/8" to 1/2". Coverage based on standard 2" x 4" x 8" (50mm to 100mm x 200mm) brick. Usage will be different for other brick sizes. All yields are approximate and do not include allowance for waste, uneven joint width, etc. Color: Tan.