Bronze sculptures are timeless works of art, but they can develop an unsightly sticky film over time. To preserve your bronze pieces, follow these expert-approved methods:

1. Regular Dusting: Use a soft, dry microfiber cloth to gently remove surface dust weekly. This prevents buildup that can trap moisture and cause stickiness.

2. Proper Wax Coating: Apply a thin layer of high-quality microcrystalline wax every 6-12 months. This creates a protective barrier against environmental factors while maintaining the natural patina.

3. Controlled Environment: Maintain stable humidity (40-50%) and temperature (18-22°C) to prevent chemical reactions that cause stickiness. Avoid direct sunlight which accelerates oxidation.

4. Gentle Cleaning Solutions: For existing stickiness, mix distilled water with a small amount of pH-neutral soap. Dampen (don't soak) a soft cloth and wipe gently, then dry immediately.

5. Professional Consultation: For valuable pieces, consult a conservator who can recommend specialized treatments like benzotriazole solutions for long-term protection.

Remember that some natural patina development is normal and desirable. The goal is to prevent excessive stickiness while preserving the sculpture's authentic character. Always test cleaning methods on inconspicuous areas first and avoid abrasive materials that can scratch the surface.