We develop and manufacture products based on customer needs including hot fluid and gas transfer, freezing prevention and high-pressure specifications.
Hot melt hoses are important accessories for hot melt machines. High-quality hoses can deliver long service life with correct operation and maintenance. This article lists key precautions: do not wrap insulation materials to avoid overheating damage, avoid excessive bending to protect thickened PTFE inner tubes, and drain all residual adhesive when idle for a long time to prevent glue solidification. Purchasing premium hoses and following maintenance rules can greatly extend their service life.
PTFE tubes can operate stably at 260°C for long-term use and withstand temperatures above 300°C for short periods. Its heat resistance originates from high-energy C-F chemical bonds, helical molecular conformation and high crystallinity, which prevent the molecular structure from cracking, oxidizing or deforming under high temperatures. The 260°C threshold is the long-term service limit determined by balancing mechanical properties and safety. Excessively high temperatures will lead to reduced strength, deformation, and even the release of toxic decomposition products.
