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Application

Joints in compartment walls and floors, gaps between frames and structures at junctions of different materials.

Description

Single-part alkoxy-based fire resistant, elastomeric, neutral cure silicone sealant, providing up to four hours fire protection at internal and external building gaps and movement joints.

Features and benefits:

  • CE marked.
  • Tested in accordance with BS EN 1366-4 and ETAG 026. Classified to BS EN 13501-2.
  • Fully tested for up to 240 minutes' joint fire resistance.
  • Suitable for gaps up to 50 mm wide.
  • Assumed working life of ten years (to ETAG 026).
  • Certified 3rd party accreditation.
  • Air pressure tested up to 600 Pa.
  • Seal ratio at 2:1.
  • Neutral cure silicone sealant.

Applications:

Joints in compartment walls and floors, gaps between frames and structures at junctions of different materials.

- Suitable substrates:

  • Masonry to masonry.
  • Masonry to timber.
  • Masonry to steel.

General information
Material

Neutral silicone

Uniclass 2015
Pr_30_31_76_77 Silicone construction joint sealantsPrimary
Specification data - Silicone construction joint sealants
Product Reference

Nullifire FS703

Colour

Grey

White

Standard product features

Material:

Neutral silicone.

Performance:

  • Fire resistance (to BS EN 1366-4): Up to four hours.
  • Air permeability (to BS EN 1046): Air tight up to 600 Pa.

Technical properties:

  • Assumed working life (to ETAG 026): Ten years.
  • Specific gravity: 1.39.
  • Shore A hardness (to ISO 868): 23.
  • Touch dry (at 23°C, 50% RH): 30–40 minutes.
  • Cure through time (at 23°C, 50% RH): 1–2 mm/ day.
  • Tensile strength (to ISO 8339) 0.7 MPa.
  • Viscosity: Thixotropic.
  • Service temperature range: -40 to +150°C.

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