What are the best methods to prevent algae growth on polyethylene outdoor armchairs?

Algae growth on polyethylene outdoor armchairs is a common issue, especially in humid or shaded areas. To prevent this, regular cleaning is essential. Use a mixture of water and mild detergent to scrub the surface, and rinse thoroughly. For stubborn algae, a solution of white vinegar or bleach diluted in water can be effective—just avoid harsh chemicals that may damage the material.

Another preventive measure is to keep the chairs dry. Store them in a covered area when not in use, or place them in direct sunlight occasionally, as UV rays inhibit algae growth. Applying a UV-resistant protectant spray can also help.

For long-term care, consider using algae-resistant coatings or treatments designed for outdoor furniture. These products create a barrier that discourages algae formation. By following these methods, you can maintain the appearance and longevity of your polyethylene outdoor armchairs.