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How do manufacturers test the resistance of landscape chairs to sap or resin stains?
Manufacturers rigorously test landscape chairs for resistance to sap and resin stains to ensure they withstand outdoor conditions. Common methods include controlled exposure tests, where chairs are coated with natural sap or synthetic resin and monitored for discoloration, adhesion, and surface damage. Accelerated weathering simulations replicate long-term exposure to sunlight and moisture, evaluating how stains interact with materials over time. Some labs use abrasion tests to mimic cleaning processes, assessing whether stains persist after scrubbing. High-quality outdoor furniture often undergoes multiple rounds of testing across different materials (e.g., polywood, aluminum, or treated teak) to guarantee stain resistance without compromising aesthetics or structural integrity. Results guide material selection and protective coatings, ensuring chairs remain visually appealing and functional in tree-heavy environments.
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