Triple Fin Intumescent Strip


  • £3.69 (Ex. VAT)

Pyroplex’s triple fin range is fire tested to BS 476: Part 22: 1987 and smoke tested in accordance with BS 476: Part 31: 1987.

On top of this, it gives customers an acoustic edge over traditional fire and smoke seals by utilising three fins which also prevents noise transference. Fins are sometimes preferred over brush pile for this reason, as well as being more favourable in environments like hospitals, computer rooms and food preparation areas.

Thermally-fused fins ensure greater performance and significantly decrease the chance of delamination.

This seal is especially beneficial in an acoustic double door configuration, where it can be used as an acoustic equivalent to the NOR720 at the meeting stile. For more information about acoustic configurations, please visit

* Due to the technical nature of our products they are designed to be installed by a professional.
* Actual product may vary from images.
** All information given is for guidance purposes only. Information is offered in good faith but cannot be used in place of current test evidence.
*** Diagrams not to scale.
**** Information is to the best of our knowledge and we reserve the right to change specification without notification.

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