Power Wash, Sand & Seal
Power washing interlock surfaces is vital for maintaining the appearance and longevity of your stone installations. It removes dirt, grime, and moss, revealing the original colors and patterns. After washing, polymeric sand is applied to lock the stones in place and prevent erosion. Sweeping this sand into the joints and activating it with water creates a rigid barrier for stability and a neat look. Finally, sealing the stones adds a protective layer against stains, moisture, and UV damage, enhancing color and lifespan. In summary, power washing, sanding with polymeric sand, and sealing are essential for the maintenance and aesthetics of interlocking stone installations, ensuring they remain functional and attractive for years.
Step-by-Step Guide for Power Washing, Sanding, and Sealing
Step 1: Gather Necessary Tools and Materials
Power washer
Paver sand or polymeric sand
Sealer (appropriate for your surface type)
Brushes or brooms
Protective gear (gloves, goggles, masks)
Step 2: Prepare the Area
Remove any furniture, plants, or obstacles from the surface.
Sweep the area to eliminate loose debris and dirt.
Step 3: Power Wash the Surface
Connect the power washer to a water source and select the appropriate nozzle (typically a 25-degree nozzle is ideal).
Start at one corner of the area and work your way systematically across.
Hold the spray wand at a 45-degree angle, maintaining a safe distance (about 12 inches) from the surface.
Use overlapping strokes to ensure even cleaning. Focus on tougher stains or areas with built-up grime.
Rinse thoroughly, ensuring all soap and debris are removed. Allow the area to dry completely (this may take several hours).
Step 4: Sand the Joints
Once the surface is dry, apply paver sand or polymeric sand.
Spread the sand evenly over the surface, using a broom to sweep it into the joints between the pavers.
For polymeric sand, follow the manufacturer’s instructions for activation, typically requiring light misting with water.
Step 5: Seal the Surface
Ensure the sand has fully set and the area is free of excess sand.
Choose a suitable sealer for your specific surface (stone, concrete, etc.).
With a roller, apply the sealer evenly across the surface, working in sections.
Be mindful of any manufacturer's directions regarding application thickness and drying times.
Allow the sealer to cure as per guidelines (typically 24-48 hours) before walking on the surface or replacing furniture.
Step 6: Clean Up
Properly clean all tools and dispose of any leftover materials according to local regulations.
Store leftover sealer and sand in a cool, dry place for future use.
By following these steps, you can effectively power wash, sand, and seal your outdoor surfaces, enhancing their appearance and prolonging their lifespan.
