Harmony Acoustic surface mounted Drop-Down Seals have been designed and tested to BS EN ISO 10140-2:2010 successfully providing the best acoustic performance whilst offering ease of installation on site.
Stocked in 2 sizes, 935 and 1035mm, the Harmony acoustic drop down seal forms an effective barrier to seal threshold gaps in doorset assemblies restricting the passage of noise, smoke, and air movement.
When activated, the drop-down element seals gaps of up to 20mm*
The unique patented design plunger (activator), is manufactured from high performance glass filled nylon and can be manually fully adjusted in situ.
This brilliant ‘click-it’ fit system negates the need for springs and can be installed without the need for mechanical tools making assembly and installation quick and efficient.
Manufactured from durable glass filled nylon, the assembly of the plunger means it can be easily replaced if damaged, negating the need to replace the complete unit.
- Cycle tested to 200,000 cycles showing no loss in sealing performance.
- 40 decibel rating.
- Suitable for use on timber doors.
*Fitted as per manufacturer’s instructions – see technical data