Benefits of Adding Expandable Graphite Powder in Fireproof Coatings

Adding expandable graphite powder to fireproof coatings can significantly enhance their fire resistance. When exposed to high temperatures, the graphite powder rapidly expands, forming a dense char layer that effectively blocks heat and oxygen, thereby slowing the spread of flames. Additionally, the expansion process absorbs a substantial amount of heat, reducing the temperature of the substrate and protecting the building structure. Compared to traditional flame retardants, expandable graphite powder is environmentally friendly, non-toxic, and exhibits excellent chemical stability, ensuring long-term effectiveness. Its lightweight nature also prevents a significant increase in coating weight, making application easier. Thus, expandable graphite powder is an ideal additive for improving the performance of fireproof coatings.