How do manufacturers test the resistance of outdoor furniture to fungal growth?
Learn how manufacturers test outdoor furniture for fungal resistance using ASTM G21 and other methods to ensure durability against mold and mildew in harsh conditions.
Manufacturers evaluate the resistance of outdoor furniture to fungal growth through standardized testing methods to ensure long-term durability. One common approach involves the ASTM G21 test, which exposes materials to fungal spores in a controlled environment to assess mold resistance. Samples are inoculated with common fungi like Aspergillus niger and observed for growth over weeks. Additionally, accelerated weathering tests simulate humid conditions to predict real-world performance. Some companies also conduct field tests in high-moisture regions. These evaluations help determine optimal materials and treatments, such as antimicrobial coatings, to prevent fungal damage and extend product lifespan.
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