What are the best methods to prevent warping in both natural and synthetic rattan outdoor trash cans?

Preventing warping in rattan outdoor trash cans requires different approaches for natural and synthetic materials. For natural rattan, regular application of rattan-specific sealants or varnishes creates a protective barrier against moisture. Position bins in shaded areas under eaves or pergolas to reduce direct sun exposure. Use waterproof liners to contain liquid waste and prevent internal moisture damage. For synthetic rattan, clean monthly with mild soap and water to maintain UV-protective coatings. Apply UV-resistant sprays every 3-6 months to prevent polymer degradation. Ensure proper drainage by checking and clearing base holes regularly. In winter, store both types in dry areas or use breathable, waterproof covers that don't trap humidity. Avoid placing near heat sources like grills, and rotate bins quarterly to ensure even weathering. For natural rattan, lightly sand and reseal annually, while synthetic versions benefit from silicone-based protectants. Always choose bins with powder-coated aluminum frames rather than steel to prevent rust-induced warping. These methods significantly extend your rattan trash can's lifespan while maintaining aesthetic appeal.