Long straight seams are faster with the **Steinel 40mm nozzle**. The 40×2 mm flat slit spreads hot air evenly across a broader band so single‑pass welds on membranes and sheet goods come together with a uniform bond. The angled body helps you track parallel to the lap, keeping pressure and temperature steady as you move. On PVC, TPO and EPDM, crews notice fewer cold spots and cleaner finishes, particularly on long field joints. Built to the same robust standard as Steinel’s professional accessories, the nozzle seats securely and maintains flow under continuous duty with HG‑series tools. If your day includes big laps, perimeter seams or wide patches, the **Steinel 40mm nozzle** provides speed without sacrificing control—consistent heat, tidy edges and dependable adhesion.