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This revolutionary friction fit seal increases acoustic performance of a standard fire rated door simply and effectively. Its design is based on ‘dual air pocket technology’ which acts in the same way as double or triple glazing.

The NOR 710FR also has smoke seal capabilities in accordance with BS 476 Part 31:1 and is unaffected by door furniture including hinges and latches. We have cycle tested the NOR 710FR acoustic seal up to 100,000 opening and closing cycles.

Screen colour may differ from actual product colour. All technical information is given as guidance only.


  • Sound reduction
  • Protects against smoke
  • BS 476 Pt 31:1 compliant
  • 100,000 cycle tested
  • Stylish ultra smooth blades
  • Dual Air Pocket Technology
  • Unaffected by door furniture
  • Material Co-extruded rigid base with flexible fins
  • Size 17.2mm(h) x 11mm(w) x 4.2mm (fin height)
  • Length 2100mm
  • Fixing Routed into frame (3mm saw cut)
Would I require a separate smoke seal if I use the NOR 710FR?
No. Since the NOR 710FR is a continuous acoustic seal it acts as a smoke seal, in fact in some ways acting better than standard intumescent smoke seals!
What size rout does the seal fit into?
The NOR 710FR will fit into a standard kerf fitting of 3mm wide and 8mm deep into the frame.
Can I use the NOR 710FR on latched doorsets?
Yes, due to the fitment position of this seal it is unaffected by standard door furniture.
Colour Code
Brown NOR710FRB
Black NOR710FRBK
White NOR710FRW