SC804 Intumescent Basecoat - On-Site, Water-Based

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SC804 Intumescent Basecoat is a water-based, white, thin film intumescent coating for the protection of internal structural steelwork. It was developed to give optimised loadings for 90 minutes, and up to 120 minutes fire resistance.


SC804 is optimised to provide 90 minutes fire resistance to ‘I’ section beams and columns, hollow columns, hollow beams, cellular beams, concrete filled hollow columns and solid steel rods. Limited 120-minute protection is also available. SC804 can be used on steel, cast iron and galvanised steel.

Safety data sheet must be read and understood before use.

  • Ultra Low VOC.
  • Competitive loadings.
  • Compatible with a wide range of Nullifire primers and top seals.
  • Easy to apply, with excellent aesthetics.
  • Optifire®+ unique traceability identifier.
  • Certifire CF5929.
Nullifire Application Instructions SC800 Series (en-GB).pdf Application Instructions
SC804 EN13381-6 Concrete Filled Hollow Columns (en-GB).pdf Loading Tables
SC804 EN13381-10 Solid Steel Bars Loading Tables (en-GB).pdf Loading Tables
SC804 Loading Tables (en-GB).pdf Loading Tables
SC804 Consolidated BS MTA Loading Tables (en-GB).pdf Loading Tables
Nullifire Intumescent Coatings Brochure (en-GB).pdf Brochure
SC804 Safety Data Sheet (en-GB).pdf Safety Data Sheets
SC804 Technical Data Sheet (en-GB).pdf Product Data Sheets
Nullifire Specification Control Guidance Note (en-GB).pdf Guidance Notes