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Nullifire M705
Description

A single part, graphite based, fire resistant intumescent sealant. It is designed to close off plastic pipe penetrations in compartment walls and floors in the event of a fire, negating the need for pipe closers or wrap systems. It is suitable for use on masonry floors and walls, drywall and in conjunction with Nullifire B747 batts. It can be used in service penetrations up to 90 mm of ABS, PE, PP, PVC and PVC-U pipes and typical areas of use include health and leisure facilities, schools, universities, commercial, retail and industrial buildings.

Features:

  • Excellent toolability and low slump characteristics.
  • Resistant to mould, fungus and vermin attack.
  • Suitable for a wide range of penetrating items and substrates.
  • Two hour smoke and fire barrier.

General information

Features

Excellent toolability and low slump characteristics

Resistant to mould, fungus and vermin attack

Suitable for a wide range of penetrating items and substrates

Two hour smoke and fire barrier

Material

Intumescent acrylic mastic

Uniclass 2015

Pr_30_31_76_02 Acrylic construction joint sealantsPrimary

CAWS

P12/48 Sealant – fire-resisting acrylic

Specification data - Acrylic construction joint sealants

Product Reference

Nullifire M705

Standard product features

Material:

Intumescent acrylic mastic.

Colour:

Grey.

Technical properties:

  • Activation temperature: 250–300°C.
  • Cure through time (20°C): 2–3 mm/ day.
  • Solids content: 82–83%.
  • Specific gravity: 1.5.
  • Tensile strength: 0.6 MPa.
  • Touch dry (20°C): 25 minutes.
  • Viscosity: Thixotropic.

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