Can I Power Wash Resin Bound Gravel?
Yes, you can power wash resin-bound gravel, but you need to take certain precautions to avoid damaging the surface. Power washing can be an effective way to clean the surface, especially if it’s covered with dirt, moss, or light staining. However, if done incorrectly, it can lead to damage or separation of the resin from the gravel.
Tips for Power Washing Resin-Bound Gravel Safely
Use Low Pressure
Avoid high pressure: Resin-bound gravel is generally sensitive to high-pressure washing, as the pressure could dislodge the resin and aggregate. When using a pressure washer, set it to a low pressure (around 1,000 to 1,500 PSI) to ensure that it doesn't disrupt the surface.
Wide spray nozzle: Use a wide-angle nozzle to disperse the water over a larger area, which helps minimize the impact force on the surface.
Keep the Wand at a Safe Distance
Distance matters: Keep the power washer nozzle at least 12-18 inches away from the resin-bound surface. This will prevent the pressure from being too focused, which could cause damage to the resin or push gravel out of place.
Avoid using the nozzle too close to the surface, as it can create localized pressure that may cause issues.
Work in Sections
It’s a good idea to work in smaller sections, moving the nozzle steadily across the surface rather than holding it in one spot. This allows for a more controlled clean, reducing the risk of water penetrating too deeply into the resin and causing separation.
Use Cold or Warm Water, Not Hot
Cold or warm water is usually sufficient for cleaning resin-bound gravel. Avoid using hot water, as it can soften the resin, making it more prone to damage under pressure.
Clean Regularly, but Avoid Overuse
While power washing is effective for periodic cleaning, don't overuse it. Frequent use of power washing can wear down the surface over time, especially if the pressure is too high.
Instead, regular light cleaning with a broom or hose can often keep the surface in good condition without needing to rely on power washing.
Check for Loose Gravel
Before power washing, ensure that no loose gravel or damaged sections are present on the surface. If the resin is already compromised or the gravel is loose, power washing can exacerbate the issue, potentially making it worse.
Dry the Area
After power washing, allow the surface to dry naturally before applying any sealant or walking/parking on it. This helps prevent any potential damage and ensures the surface is clean and dry.
When Not to Power Wash Resin-Bound Gravel
If the resin-bound gravel surface is new (less than 6 months old), it's best to avoid using a power washer, as the resin may still be curing and could be more vulnerable to damage.
For heavy staining or more delicate areas, avoid power washing and opt for milder cleaning methods like a soft brush with soapy water or specific stain removers.
Alternative Cleaning Methods
If you're concerned about the effects of power washing, consider these gentler cleaning alternatives:
Brooming: Sweeping the surface regularly can prevent dirt and debris from settling into the gravel.
Soft Brush with Soapy Water: For mild stains, use a soft brush with a mild detergent mixed with warm water.
Pressure Wash with a Surface Cleaner Attachment: A surface cleaner attachment for pressure washers is a good alternative. It disperses water over a wide area without focusing on one spot, offering a gentler clean.
Conclusion
While you can power wash resin-bound gravel, doing so carefully with the right settings is essential to avoid causing damage to the surface. Use low pressure, a safe distance, and work in sections for best results. Avoid overuse and always check for loose gravel before cleaning. If you’re unsure, it’s always better to use gentler cleaning methods or consult a professional for advice Pro Surface Irl Ltd.