SC902 Intumescent Steel Coating
A one-coat, low-VOC hybrid intumescent basecoat for structural steel, tested to BS 476 and EN 13381 parts 6, 8, 9 and 10 for fire resistance periods up to 120 minutes. Fast curing — touch dry in one hour and shower-proof within one hour — so 120-minute loadings can be applied in a single coat on site or off. Applied to I-section beams and columns, hollow and cellular sections, concrete-filled hollow columns and solid tension rods. Supplied white; the finished colour of exposed steelwork comes from a decorative topseal over it, not from this product.
Carbon and evidence
Product Evidence
Evidence currently held for the Nullifire product record.
Recorded Carbon Result
A1–A3 GWP-total per 1 kg of coating (average declaration, 2% product variation)
A1–A3 covers raw-material supply, transport to manufacture and manufacturing. It is product-stage information, not a whole-life result.
Environmental Product Declaration
EPD recorded- Coverage
- Manufacturer average
- Declared unit
- 1 kg of coating
- Programme
- EPD International AB (The International EPD® System)
- Registration
- EPD-IES-0013792:006 (S-P-13792)
- Standard
- EN 15804:2012+A2:2019/AC:2021
- Valid until
- 2029-05-15
- Verification
- Third-party verified
Average declaration covering SC901, SC902, SC904 and Carboline Thermo-Sorb HB; stated GWP variation across those products is 2%. Published 2024-05-16, revised 2025-10-02. A4–A5 and B1–B7 are Not Declared. Declared per 1 kg of coating, as published. Converting to kgCO2e/m² of steel requires the dry film thickness for the section factor and fire period actually specified — a project quantity that a palette does not hold. Never add this figure to the steel section figure: the two are declared against different units.
Carbon profile
kgCO2e per 1 kg · each bar starts at zero · local scale
A1-A3 product
2.9
A4-A5 site*
—
B use
—
C end of life
2.5
D reuse / recycling
0
Reported GWP Modules
Displayed as stored; modules are not added together here.
A1–A3
2.9 kgCO₂e
per 1 kg
A4*
not captured
per 1 kg
A5*
not captured
per 1 kg
B1–B7
not captured
per 1 kg
C1
0 kgCO₂e
per 1 kg
C2
<0.001 kgCO₂e
per 1 kg
C3
0 kgCO₂e
per 1 kg
C4
2.5 kgCO₂e
per 1 kg
D
0 kgCO₂e
per 1 kg
1 claim is held in the staging record but not presented as product evidence because an exact public source has not yet been mapped.
Comparison Status
This result should be displayed for information only and not ranked against another product.
- • The PCR and version are missing.
- • The GWP indicator is missing.
- • The carbon result is not linked to an evidence source.
- • The EPD is not linked to an evidence source.
Evidence Gaps
- •1 sustainability claim is withheld because exact public evidence is not mapped.
Design & Specification Notes
Qualitative notes for early design discussion. Not product-specific EPD evidence, and not a basis for numerical comparison.
A one-coat, low-VOC hybrid intumescent basecoat for structural steel, tested to BS 476 and EN 13381 parts 6, 8, 9 and 10 for fire resistance periods up to 120 minutes.
Typical Uses
- •Primary frame
- •Long-span elements
- •Load-bearing supports
Key Performance
High load-bearing capacity for primary frame.
Typical Service-Life Estimate
60 yearsGeneric estimate for early design discussion; confirm with the manufacturer.
Specification Actions
- •Confirm the current EPD covers the selected steel product and manufacturing route.
- •Verify recycled content and the steel manufacturing route with supplier evidence.
- •Calculate transport distances for primary materials.
Indicative Health & Indoor Air
Applied by trained and approved contractors. Consult the manufacturer safety data sheet for handling, ventilation and PPE.
Specification
- Product code
- SC902
- Collection
- Steel coatings
- Finish
- Hybrid intumescent basecoat — supplied white
- Fire rating
- Up to 120 minutes fire resistance to BS 476 and EN 13381 parts 6, 8, 9 and 10. The period achieved depends on the dry film thickness applied for the section factor of each member — read from the project loading schedule, never assumed.