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flexifin_insetFlexifin Fitted

Flexifin® Fire Seals

A unique innovation in door seal design, Flexifin combines excellent acoustic sealing properties against the spread of noise as well as cold smoke and draughts. Flexifin seals can be combined in a rigid PVC holder with Pyrostrip 100 and 500 intumescent materials to add superb resistance to fire spread.

  • Robust design
  • All-rubber seal
  • High-tack self-adhesive
  • 100.000 open/close cycle test
  • Available in a variety of colours
  • Can be supplied as a stand- alone smoke, acoustic and draught seal
  • Can be combined with various intumescent specifications for enhanced performance
  • Certifire approved



Full fixing instructions supplied with the product.

Available in 1000mm, 1050mm, 2050mm and 2100mm lengths.
Non standard lengths are available on request.

Please contact our Technical Team if you require additional advice.


Decibel Rating = 32dB (BS EN ISO 140-3:1995) (BS EN ISO 717-1:1997)
Smoke Leakage Rate @ +25pa = 1.57 m3/m/h (metre cubed per metre of joint per hour) (BS 476 Part 31.1)

Acoustic performance test

  • Stop Fitted with either ACS1 Acoustic Seal or TD5 Teardrop Seal
  • 44mm Strebord Firecheck door in a maple frame
  • Head and jambs fitted with Flexifin seals
  • DD1 Acoustic Dropseal installed




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