1. Product Description DTS640A is a double-sided tape with good initial tack. One side features a foamed (thermally expandable) adhesive layer, while the other side is a conventional pressure-sensitive adhesive (PSA) layer. When heated at 150–160°C, the foamed adhesive layer gradually loses its tack and enables automatic detachment from the bonded substrate. 2. Product Structure 3. Product Features ✔ Initial heat resistance with no re-tack (no sticky residue after thermal
