Pentabromobenzyl acrylate is primarily used as a flame retardant in various polymer systems. It is incorporated into materials such as plastics, coatings, and adhesives to enhance their fire resistance properties. The chemical is particularly effective in applications where high thermal stability and low smoke emission are critical, such as in electrical and electronic components, construction materials, and textiles. Its ability to inhibit combustion makes it valuable in improving the safety and durability of products exposed to high temperatures or potential fire hazards. Additionally, it is utilized in the production of flame-retardant fabrics, ensuring compliance with fire safety regulations in industries like automotive, aerospace, and protective clothing manufacturing.