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Fireshield SQ476
Description

Fireshield SQ476 is a white single pack solvent intumescent used to fire rate internal structural steel for up to 60 minutes.

Key Features
  • Quality finish single pack solvent intumescent for interior use
  • Pigmented white
  • Interior or C1 use sequence of required coatings:
    • 1. Fireshield Approved primer coat
    • 2. Fireshield SQ476
  • When used in internal C1 areas where constant air humidity is over 75%, when a washable surface is required or in an internal C2 and C3 zone, sequence of required coatings:
    • 1. Fireshield approved primer coat (suitable for Corrosion Zone)
    • 2. Fireshield SQ476
    • 3. Fireshield approved top coat 
Scope of Use
  • The product must be applied in strict accordance with the Fireshield Application Instructions
  • Any steel surface that is to be coated is at a temperature above +5°C and below +35°C: and is at least 3° above the dew point
  • The surface to be coated must be completely clean and dry, remove all rust, dust, oil, grease, loose material or other contaminants
  • Check compatibility with any previous applied product before application

Interior or C1 use sequence of required coatings:

  • 1. Fireshield Approved primer coat
  • 2. Fireshield SQ476

When used in internal C1 areas where constant air humidity is over 75%, when a washable surface is required or in an internal C2 and C3 zone, sequence of required coatings:

  • 1. Fireshield approved primer coat (suitable for Corrosion Zone)
  • 2. Fireshield SQ476
  • 3. Fireshield approved top coat 

Application:

  • Airless spray gives the best result.
  • Brush and Brush applications are only suitable for small areas or touch-up and may result in a textured finish
Limitations on Use
  • Do not use on exterior steel structure
  • For C1 internal use without an approved top coat
  • Must be top coated in internal C2 and C3 zones and when the relative humidity is constantly over 85%
  • During application and curing day or night ensure that the air temperature must be between +5°C minimum to a maximum +35°C. The relative air humidity level is below 85%
  • Protect from wetting/moisture/windblown rain and do not let water pool on or around the coated steel section during application and curing 
Statement of Building Code Compliance

Tested to BS476 parts 21 : 1987 as per NZS3404:Part 1, 1997 and complying with the New Zealand Building Code B1/VM1 and C2/AS1-C6/AS1 Section C5.1.1.

B1 Structure compliant
Structure
C Protection from Fire compliant
Protection from Fire
Documents
Data Sheet: SQ476

04-12-2019

Safety Data Sheet: SQ476

01-05-2019

Fireshield specialise in intumescent coatings for exposed and hidden structural steel and clear and pigmented intumescent coatings for internal timber linings and battens — Proudly available at Dulux.

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