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Pyrostrip Interdens Glazing

Pyrostrip is a phosphate based (MAP) multi-component intumescent system proving a minimum of 30 minutes protection for a wide variety of fire resistant glass and other applications.

Under the action of heat, the components react chemically to form a soft char some 40 times its original volume and this seals gaps which may occur during a fire. It also has insulating properties to protect timber substrates in such situations.

  • Proven fire resistance in excess of 30 minutes
  • Choice of white, red, black or brown finishes
  • Supplied in sheet form, can be cut to size or length if required
  • Option for self-adhesive backing for ease of fixing
  • Completely flexible when cold
  • Standard thickness Type 36 – 2mm

Technical

Description

Pyrostrip Interdens is manufactured in multiple formats and available as cut to size strips.

When exposed to fire, the product exerts a two phase expansion at 150ºC and then at 300ºC, the resulting foam acts as both an insulator against radiant heat and a barrier to fill gaps in fire resisting structures.

Sizes

Type 36 – 2mm thick supplied in either 10 or 20mm widths depending on test evidence

Can be supplied in either 1m or 2m lengths.

Finishes

Type 36 – White, Red, Brown and Black

Application

The product is semi-rigid and is used to seal the gap between the glazing bead and glass as dictated by Certifire/fire test evidence.

Performance

Pyrostrip Interdens has undergone fire tests globally, in the UK it has been successfully tested to BS476 Part 22 and BS EN 1634.

In addition, IFSA have conducted ageing tests as part of an ongoing programme in the UK and Germany.

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