Pour a glass of water on Brock and watch the water instantly penetrate the surface, flow through the material and exit the other side. This same rate of flow occurs in any direction throughout the Brock matrix.
A one inch thick piece of Brock will drain water vertically at a rate
of over 320 inches per hour! Each polymer bead in Brock is hydrophobic, so it won't absorb moisture and resists mold or bacterial growth.

Applications that benefit from Brock’s superior porosity:
• Fast-drying outdoor furniture
  cushions
• Residential and commercial   drainage systems
• Artificial turf underlayment
• Geocomposites