What are the best non-toxic flame retardants for synthetic rattan outdoor sofas?

When it comes to outdoor furniture, synthetic rattan sofas are a popular choice due to their durability and aesthetic appeal. However, ensuring fire safety without compromising health or environmental standards is crucial. Here are some of the best non-toxic flame retardants for synthetic rattan outdoor sofas:

1. Ammonium Polyphosphate (APP) – A halogen-free flame retardant that is effective and environmentally friendly. It works by forming a protective char layer when exposed to heat.

2. Aluminum Trihydroxide (ATH) – A non-toxic, mineral-based retardant that releases water vapor to cool and dilute flammable gases.

3. Magnesium Hydroxide (MDH) – Similar to ATH, MDH is eco-friendly and works by endothermic decomposition, making it ideal for outdoor use.

4. Intumescent Coatings – These expand when heated, creating a barrier that insulates the material from flames. They are often water-based and low in toxicity.

5. Boron Compounds – Natural and effective, boron-based retardants like borax are safe for outdoor furniture and inhibit flame spread.

Choosing the right flame retardant depends on factors like durability, weather resistance, and environmental impact. Always opt for certified, non-toxic options to ensure safety for both users and the planet.