What are the best wood finishes for slip-resistant outdoor chair surfaces?

When selecting wood finishes for outdoor chairs, slip resistance is crucial for safety and durability. Here are the top options:

1. Marine Varnish: Highly durable and water-resistant, marine varnish provides a glossy, slip-resistant surface ideal for wet conditions.

2. Polyurethane with Additives: Adding non-slip additives like silica to polyurethane enhances traction while maintaining a protective finish.

3. Epoxy Resin: A tough, slip-resistant coating that bonds tightly to wood, offering long-term protection against moisture and wear.

4. Oil-Based Finishes (e.g., Tung Oil): Penetrates deeply, providing a natural, slightly textured surface that improves grip over time.

5. Exterior-Grade Lacquer: Fast-drying and UV-resistant, it can be mixed with grit for extra slip resistance.

For optimal results, sand the wood lightly before application and reapply finishes periodically to maintain slip resistance and weather protection. Choose a finish based on your climate and chair usage to ensure longevity and safety.