What are the fire-retardant additives used in composite outdoor flower pots?

Composite outdoor flower pots are popular for their durability and aesthetic appeal, but safety is equally important. To enhance fire resistance, manufacturers incorporate various fire-retardant additives into the polymer matrix. Common additives include aluminum trihydrate (ATH), which releases water vapor to cool flames, and magnesium hydroxide, a non-toxic alternative that decomposes under heat to form a protective layer. Halogen-based compounds like brominated flame retardants are effective but less eco-friendly. Intumescent additives, which expand when exposed to heat, create a barrier against fire. These additives ensure composite pots meet safety standards while maintaining their structural integrity. Choosing the right fire-retardant solution depends on balancing performance, cost, and environmental impact.