AkzoNobel Chartek 2218E — Boron-Free Epoxy Passive Fire Protection

Product · Fire Safety

Product · InnDex 22 · Evidence provided · High specification risk

Single-coat boron-free epoxy intumescent for passive fire protection on onshore steel structures.

Chartek 2218E is a polysiloxane-modified epoxy intumescent coating that expands under heat to protect onshore steel structures from fire. It addresses the oil & gas sector's cost and labour burden in shop-applied passive fire protection by eliminating the need for a separate topcoat while meeting UL2431 weathering standards. The coating is applied directly over mesh substrate in one application.

Chartek 2218E is a polysiloxane-modified epoxy intumescent coating for onshore steel structures that claims to eliminate the separate topcoat step, cutting labour and material cost per unit area in shop-applied passive fire protection workflows. The boron-free formulation targets a real regulatory direction of travel, and AkzoNobel's established track record in the Chartek range provides category credibility that most novel PFP products lack. This specific formulation, however, is at provided status with one evidence datapoint and meaningful certification gaps: no UL file number has been publicly confirmed as of the ADIPEC 2025 announcement, no independent third-party test reports have been published, and the claimed 50% labour and 25% cost savings are unverified marketing figures without documented project benchmarks. A single-coat system introduces higher sensitivity to application thickness variation and surface preparation quality, which in field conditions creates a reliability trade-off compared to multi-coat systems that offer more tolerance. For specifiers procuring passive fire protection for onshore oil and gas infrastructure, the system is worth requesting current certification documentation and applicator trial data from AkzoNobel directly — the concept is credible, but a product of this performance class should not be specified into a project without a confirmed UL file and at least one independent weathering validation.

Strengths

• Eliminates secondary topcoat application, reducing labour steps and material cost per unit area
• Single-coat system simplifies shop-applied workflow and reduces scheduling complexity
• Boron-free formulation may offer environmental or regulatory advantage vs. legacy intumescents
• Targets genuine cost pressure in oil & gas offshore/onshore PFP labour spend

Considerations

• No UL file number publicly available; certification status unconfirmed as of launch (critical)
• Single-coat design may reduce application tolerance for thickness variation and surface prep defects (moderate)
• Epoxy-based chemistry may have lower adhesion to heavily corroded or mill-scale steel without primer (moderate)

Risks

• No independent third-party test reports or published field validation; claims of 50% labour and 25% cost savings are unsubstantiated marketing maxima (high)
• Zero documented case studies or real deployment data as of ADIPEC 2025 announcement; long-term weathering and fire performance in service unknown (high)
• Single-coat intumescent systems may exhibit chalking, UV degradation, or loss of intumescent reserve over 10+ year asset life without validation (moderate)
• Polysiloxane modification may introduce compatibility or curing sensitivity issues not yet disclosed in technical literature (low)

Performance

• Fire rating (single coat): 2 hr UL1709 hydrocarbon pool fire
• Application hours saving (claimed): Up to 50%
• Material cost saving (claimed): Up to 25%
• Weathering certification: UL2431 (no topcoat required)

Reality check

UL1709 hydrocarbon pool-fire certification claimed but UL file number not disclosed publicly — third-party validation exists in principle but is opaque. No independent comparative testing, field case studies, or long-term deployment data published. Single-coat and no-topcoat-required claims are attractive but unverified in real marine/subsea or onshore corrosive environments. Claimed labour/cost savings (50%/25%) are typical marketing-speak ('up to') lacking baseline methodology, labour rates, or validation. Product launched at ADIPEC 2025; too early to assess durability, adhesion failure modes, or repairability in operation.

#epoxy_coating #intumescent #passive_fire_protection #onshore_steel #oil_gas #boron_free

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