How does polyester fabric compare to canvas in outdoor sofa flammability?
When choosing materials for outdoor sofas, flammability is a critical safety consideration. Polyester fabric and canvas are two popular options, but they differ significantly in their fire resistance. Polyester is a synthetic fiber that tends to melt rather than ignite, but it can still burn if exposed to high heat. Canvas, typically made from cotton or linen, is a natural fiber that burns more easily unless treated with flame retardants. For outdoor use, polyester generally offers better flammability resistance due to its synthetic composition, while untreated canvas may pose a higher fire risk. Always check for fire-resistant treatments or certifications when selecting outdoor sofa fabrics to ensure safety.