Lintel stains on a slate outdoor table can be unsightly, but with the right approach, you can restore its natural beauty. Here’s a step-by-step guide to effectively remove these stains:

1. Identify the Stain Type: Lintel stains are often caused by rust or mineral deposits. Check if the stain is surface-level or deeply embedded.

2. Prepare a Cleaning Solution: Mix equal parts water and white vinegar in a spray bottle. For tougher stains, add a small amount of baking soda to create a paste.

3. Apply the Solution: Spray or apply the mixture directly onto the stain. Let it sit for 10-15 minutes to break down the residue.

4. Scrub Gently: Use a soft-bristle brush or non-abrasive sponge to scrub the stain in circular motions. Avoid harsh tools that could scratch the slate.

5. Rinse Thoroughly: Wash the area with clean water and wipe dry with a microfiber cloth to prevent water spots.

6. Seal the Slate (Optional): To protect your table from future stains, apply a slate sealer after cleaning.

For persistent stains, repeat the process or consult a professional. Regular maintenance will keep your slate table looking its best for years to come.