WB50

NorthRock Weed-Blocker
Seasonal Maintenance
MPN: WB50 WB50

Weed-Blocker Paver Locking Sand is a specially formulated polymer modified joint sand for use with pavement systems utilizing segmental concrete pavers, clay pavers or natural stone; concrete slab joint applications or filling gaps between segmental retaining wall blocks.

Designed for average joint widths of 1/4″ to 3/8″ wide, Paver Locking Sand becomes activated when combined with water, and needs to be applied as a dry polymeric sand to dry surfaces.

50lbs Covers approximately 50 to 75 sq ft for a thin joint lay (clay brick paver) or approximately 20 to 35 sq ft for a wide joint (concrete paver). Approximate coverage estimates will depend on various sizes of paver or slabs and size of joint gap.

  • Inhibits weed growth and controls erosion
  • Resists insects
  • Environmentally friendly: Harmless to plants and animals
  • Self-healing and flexible
  • Activated with water