The SZ309 steel frame seal finds, as the name suggests, its typical use in house and interior doors.
Nowadays, hollow chamber seals or hollow chamber profiles are mainly used to seal doors against noise, which are better suited than foam rubber seals.
This advantage stands out particularly in sound insulation.
This is where hollow chamber profiles made of thermoplastic elastomer (TPE) are superior to foam rubber seals.
Design and look complete the entire profile and thus meet modern requirements.
The steel frame seal SZ309 is available in grey and black.