How do synthetic rattan sculptures compare to wood or metal in thermal expansion?

When choosing materials for outdoor sculptures, thermal expansion is a critical factor. Synthetic rattan, wood, and metal each react differently to temperature changes, impacting their durability and appearance.

Synthetic rattan, made from high-density polyethylene (HDPE) or other polymers, exhibits minimal thermal expansion compared to wood or metal. Its plastic composition allows it to withstand temperature fluctuations without warping or cracking, making it ideal for outdoor use.

Wood, a natural material, expands and contracts significantly with humidity and temperature changes. This can lead to cracks, splits, or warping over time, especially in extreme climates.

Metal sculptures, particularly those made from aluminum or steel, expand and contract more noticeably than synthetic rattan. While metals are durable, their thermal movement can cause structural stress or require expansion joints in large installations.

For long-lasting outdoor art, synthetic rattan offers superior stability with minimal thermal expansion, outperforming wood and metal in harsh weather conditions. Its lightweight, low-maintenance properties further enhance its appeal for sculptors and designers.