What fire-retardant coatings are safe for public rattan sculptures in urban areas?

Public rattan sculptures in urban areas require fire-retardant coatings that balance safety, durability, and environmental friendliness. Water-based intumescent coatings are a popular choice, as they expand when exposed to heat, creating a protective barrier without releasing toxic fumes. These coatings are often low-VOC and non-toxic, making them safe for public spaces.

Another option is silicate-based fireproof coatings, which are inorganic and non-combustible. They provide long-term protection and are resistant to weathering, ideal for outdoor sculptures. For eco-conscious projects, bio-based flame retardants derived from plant starches or proteins can be applied, though their durability may require more frequent reapplication.

Always verify that the selected coating meets local fire safety standards (e.g., ASTM E84 or EN 13501) and is compatible with rattan’s porous structure. Regular maintenance and inspections ensure ongoing protection while preserving the sculpture’s artistic integrity.