Slate outdoor tables are durable and stylish, but they can develop unsightly curtain wall stains over time. These stains often result from dirt, algae, or mineral deposits left behind by water runoff. Fortunately, removing them is easier than you might think.

Step 1: Prepare the Surface

Start by brushing off loose debris with a soft-bristle brush. Avoid using metal brushes, as they can scratch the slate.

Step 2: Use a Mild Cleaning Solution

Mix warm water with a few drops of dish soap or a specialized stone cleaner. Apply the solution to the stained area and let it sit for 5-10 minutes.

Step 3: Scrub Gently

Use a non-abrasive sponge or cloth to scrub the stain in circular motions. For tougher stains, a nylon brush can be helpful.

Step 4: Rinse Thoroughly

Rinse the slate with clean water to remove any soap residue. Avoid letting the cleaner dry on the surface, as it may leave streaks.

Step 5: Prevent Future Stains

To keep your slate table looking pristine, consider applying a stone sealer. This will help repel water and reduce the likelihood of future staining.

By following these steps, your slate outdoor table will stay beautiful and stain-free for years to come.