How does the inclusion of mineral fillers in resin composites improve fire resistance in planters?

The inclusion of mineral fillers in resin composites significantly enhances the fire resistance of planters by altering their thermal and chemical properties. Mineral fillers such as aluminum hydroxide, magnesium hydroxide, or calcium carbonate act as flame retardants, releasing water vapor when exposed to heat. This process absorbs energy, cools the material, and dilutes flammable gases, slowing combustion. Additionally, these fillers form a protective char layer that insulates the underlying resin, preventing further degradation. As a result, planters made with mineral-filled resin composites exhibit improved safety, reduced flammability, and longer durability in high-temperature environments. This makes them ideal for both indoor and outdoor use where fire resistance is a priority.