Extremely Strong Industrial Bonding: AdTech Formula 501 hot glue sticks provide exceptionally strong adhesion to PP, PE, PET, PVC, and most plastics, ensuring durable, long-lasting bonds. Fast 20-Second Set Time for Efficiency: Designed for professional and industrial use, these glue sticks set in just 20 seconds, allowing for quick application and assembly. High-Temperature Performance with Heat Resistance: Works best in high-temp glue guns, offering superior heat resistance for demanding projects that require strong, reliable adhesion. Large 10" Full-Size Glue Sticks for Maximum Coverage: Each 10-inch glue stick with a 0.44-inch diameter provides greater mileage per pound, making it ideal for high-volume usage. Convenient 5 lb Box for Industrial Use: Bulk packaging ensures you have plenty of high-performance glue sticks for manufacturing, woodworking, packaging, repairs, and large-scale projects.