The film is heated using a continuosly heated welding tool. The welding temperature, which is permanently available, reduces the manufacturing cycle. Backing films impede weld displacement.
With the heating element welding process- a generically related process- on the other hand, the surfaces are pressed against a continuosly heated welding mirror and then joined.

-	short cycles
-	suitable for all thermoplastic materials
	Heating element welding
-	also suitable for thick-walled parts