Anchoring an outdoor table on a slate patio requires careful consideration to ensure stability and longevity. Slate's smooth surface can make securing furniture challenging, but these methods will help you achieve a firm hold.

1. Use Weighted Table Bases: Opt for tables with heavy bases or add sandbags or weights to the legs. This prevents tipping without damaging the slate.

2. Adhesive Anchors: Apply weather-resistant adhesive pads or epoxy to the table legs. These create a strong bond while being removable with minimal residue.

3. Drill and Bolt (For Permanent Solutions): If you don’t mind a semi-permanent setup, drill into the slate and use expansion bolts to secure the table. Ensure proper sealing to prevent water damage.

4. Non-Slip Pads: Place rubber or silicone pads under the legs to reduce movement. These are ideal for temporary setups and protect the slate from scratches.

5. Freestanding Umbrella Base: For tables with umbrella holes, a weighted base can double as an anchor, adding stability without modifications.

Choose the method that aligns with your needs—whether temporary or permanent—to keep your outdoor table steady on a slate patio.