Technomelt AS 4004 from Henkel is a hot-melt adhesive used for securing clay and concrete roof tiles during transport. The adhesive’s polypropylene base enables lower processing temperatures, reducing energy consumption during production and extending the service life of the application heads. The adhesive ensures minimal dust generation on the production line and is characterized by high temperature stability, as pallets covered in stretch film heat up considerably in summer.

The adhesive is designed to remain dimensionally stable even at temperatures 30 °C above the maximum expected transport temperature. It can subsequently be peeled off painted surfaces without leaving any residue. Application is faster and more reproducible than manual separation methods. Tests demonstrated a throughput of up to 140 roof tiles per minute.