Wet and Forget is a popular brand of concentrated mold and mildew remover that homeowners often consider for cleaning various outdoor surfaces. Many people wonder, does Wet and Forget clean concrete, specifically driveways, patios, and sidewalks covered in unsightly stains and discoloration. The short answer is a resounding yes, but the process requires understanding the product's mechanism and proper application techniques to achieve the best results safely.
How Wet and Forget Works on Concrete
The active ingredient in Wet and Forget is typically sodium hypochlorite, a powerful oxidizing agent similar to bleach, but formulated to be more stable and less volatile. When applied to concrete, the solution penetrates the porous surface and breaks down the organic matter such as algae, moss, lichen, and mold that cause discoloration. Unlike simple washing, this chemical action eradicates the root of the stain rather than just moving the dirt around, leading to a significantly cleaner and brighter appearance.
The Science Behind the Cleaning
Concrete is a highly absorbent material, and environmental contaminants often settle deep into its surface. Wet and Forget cleans by initiating an oxidation reaction that destroys the cellular structure of the biological growth. This process not only removes the visible stains but also prevents rapid regrowth, which is why many users report longer-lasting results compared to pressure washing alone. For the best outcome, the product needs sufficient dwell time to work effectively on the stained area.
Step-by-Step Application Guide
To answer the question of how to use Wet and Forget on concrete properly, you must follow specific steps to ensure safety and efficacy. You should never simply pour the product onto dry concrete. Instead, the surface should be pre-wetted with clean water to prevent the solution from drying too quickly, which can reduce its effectiveness and potentially cause surface etching.
- Begin by sweeping the concrete to remove loose debris and dirt.
- Lightly rinse the area with water to open the pores of the concrete.
- Apply the Wet and Forget solution evenly using a garden sprayer, ensuring complete coverage of the stained areas.
- Allow the product to sit for the recommended dwell time, usually 15 to 20 minutes, keeping the surface moist.
- Rinse thoroughly with a power washer or hose to remove the dissolved stains and residue.
Safety Precautions and Considerations
While Wet and Forget is a convenient solution, safety is paramount when using any chemical cleaner. Sodium hypochlorite can be harsh on certain materials and can cause discoloration if not used correctly. Always wear protective gear, including gloves and eye protection, to prevent skin and eye irritation. Furthermore, be cautious of runoff, as the solution can discolor surrounding plants and landscaping if it enters the soil or reaches flower beds.
Protecting Surrounding Areas
Before you begin the cleaning process, it is wise to cover any nearby vegetation or delicate surfaces with plastic sheeting. This barrier will protect the plants from the chemical runoff. Additionally, avoid using the product on hot, sunny days, as rapid evaporation will cause streaking and reduce the cleaner’s ability to break down the grime effectively.
Comparing Wet and Forget to Alternatives
When evaluating cleaning solutions for concrete, it is helpful to compare Wet and Forget to traditional methods. Standard bleach is often used but can be less effective due to its instability and tendency to evaporate quickly. Pressure washing is a mechanical method that can be effective for surface dirt but often fails to remove deep-seated organic stains without the use of harsh scrubbing. Wet and Forget offers a balance, providing a deep clean without the physical labor required for aggressive scrubbing.
| Cleaning Method | Effectiveness on Organic Stains | Labor Intensity | Risk of Surface Damage |
|---|---|---|---|
| Wet and Forget | High (Chemical Breakdown) | Low | Low (If directions followed) |
| Bleach Solution | Moderate | Moderate | Moderate |
| Pressure Washing | Low to Moderate | High | High (Can cause etching) |
| Scrubbing with Detergent | Low to Moderate | High | Low |
Maintaining Clean Concrete
After successfully cleaning your concrete with Wet and Forget, maintenance becomes the next critical phase. The clean surface will look significantly better, but without preventative measures, moss and algae will eventually return. One effective strategy is to apply a penetrating silane or siloxane sealer after the concrete is completely dry. This sealer helps repel water, making it harder for moss spores to take hold and staining the surface again.
Regular light rinsing with a hose every few weeks can also disrupt the growth cycle of mold and algae. By combining the powerful cleaning action of Wet and Forget with consistent preventative maintenance, you can keep your concrete surfaces looking fresh and new for years to come, maximizing the return on your cleaning investment.
