What are the differences in thermal expansion between teak and pine in sculptures?

When selecting wood for sculptures, understanding thermal expansion properties is crucial for long-term durability. Teak and pine exhibit distinct behaviors under temperature changes. Teak, a dense tropical hardwood, has relatively low thermal expansion due to its tight grain structure and high oil content. This stability makes it ideal for outdoor sculptures exposed to varying climates. Pine, a softwood, expands and contracts more significantly with temperature fluctuations because of its porous structure and lower density. This can lead to cracking or warping over time, especially in environments with extreme temperature shifts. Artists working with pine often need to account for this movement in their designs or use stabilization techniques. For indoor sculptures, pine's expansion may be less problematic, but teak remains the superior choice for projects requiring minimal dimensional change. Proper sealing and finishing can mitigate some of pine's expansion issues, but teak naturally resists moisture and temperature effects better. The choice between these woods ultimately depends on the sculpture's intended location, budget, and desired longevity.