Cleaning and Sealing your Drive

Power washing block pavement and tarmac involves more than just spraying water at high pressure. Here's a step-by-step overview of the process:

• Preparation
  Before power washing, it's essential to clear the surface of any loose debris, furniture, or vehicles. Plants and nearby landscaping should be covered to protect them from the high pressure and cleaning agents. Block pavement surfaces should also be swept to remove any loose sand or gravel that might interfere with the cleaning process.
• Application of Cleaning Solution
  A specialized cleaning solution is applied to the surface, especially when dealing with oil, moss, or algae. The solution is allowed to sit for several minutes to break down the stains and kill organic growth, making it easier to remove during the washing phase.
• Power Washing the Surface
  Using a pressure washer with the appropriate setting, the surface is washed in sections. The operator must adjust the water pressure to avoid damaging the surface—higher pressure for tarmac and slightly lower for block pavement to prevent dislodging blocks or jointing sand. The power washer should be held at a consistent angle and distance from the surface to ensure even cleaning.
• Spot Treatment for Stubborn Stains
  Some stains, like deeply ingrained oil or rust, may require additional attention. These areas can be treated with a stronger detergent or stain remover, followed by a concentrated power wash.
• Rinsing and Inspection
  After power washing, the surface is thoroughly rinsed to remove any remaining debris, dirt, or cleaning agents. The area is then inspected to ensure all stains have been removed and no damage has been caused during the washing process.

• Surface Preparation
  Before applying the sealant, ensure the surface is completely dry and free of any debris or contaminants. For block pavement, it’s essential to reapply jointing sand to fill any gaps between the blocks that may have been washed away during the power washing process.
• Choosing the Right Sealant
  There are different types of sealants available, including water-based and solvent-based options. Water-based sealants are environmentally friendly and provide UV protection, while solvent-based sealants offer superior stain resistance. The choice of sealant will depend on the surface type (block pavement or tarmac) and the level of protection desired.
• Application of Sealant
  The sealant is applied using a roller or sprayer, depending on the surface area and the type of sealant. It’s important to apply the sealant evenly, avoiding puddles or streaks. For block pavement, care must be taken to avoid over-saturating the joints, which could dislodge the sand. Multiple thin coats may be necessary to ensure adequate coverage.
• Drying Time
  After the sealant is applied, the surface must be left to dry for at least 24-48 hours, depending on the weather conditions and the type of sealant used. During this time, the surface should be protected from foot traffic, vehicles, and rain to ensure a smooth, even finish.
• Regular Maintenance
  Sealed surfaces should be inspected and resealed every few years, depending on the level of wear and exposure to the elements. Regular cleaning and resealing will keep your block pavement and tarmac looking fresh and extend the lifespan of the surfaces.