ISO 12944 Certified Coating Systems
ISO 12944-Certified Coating Systems
Comprehensive Corrosion Protection for Steel Structures in Every Environment
From offshore rigs to urban bridges, steel structures face constant threats from corrosion — driven by moisture, salt, chemicals, and pollution. The ISO 12944 standard sets the global benchmark for protecting steel with performance-tested coatings designed for specific environments and durability requirements.
At New Guard Coatings, we supply a full range of ISO 12944-compliant protective systems, helping you extend asset life, minimise downtime, and meet international specifications with confidence.
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✅ Why Choose Our ISO 12944 Solutions?
✔️ Certified Performance – We offer coatings designed to meet ISO 12944 requirements across all corrosion categories, from mild indoor settings (C1) to extreme offshore conditions (CX).
✔️ Tailored Durability – Choose systems with low, medium, high, or very high durability ratings — from up to 7 years to over 25 years of protection, based on your project's needs.
✔️ Expert Specification Support – Not sure which coating to specify? Our technical team will guide you through ISO 12944 classifications and help you select the right system for your structure and exposure level.
✔️ Trusted Brands – We work with global leaders in protective coatings to supply high-performance, ISO-compliant systems that ensure adhesion, abrasion resistance, and corrosion protection.
✔️ Wide Application Range – Whether it’s industrial plants, bridges, marine vessels, or offshore platforms, our coatings provide long-term protection against corrosion in all conditions.
What is ISO 12944?
ISO 12944 is the international standard developed by the International Organization for Standardization (ISO) to protect steel structures from corrosion through proven protective paint systems.
The standard classifies environments (C1 to CX), defines durability expectations, and provides best practices for surface preparation, coating selection, and application. It serves as a crucial reference for engineers, specifiers, asset owners, and contractors worldwide.
Corrosion Categories & Durability Ratings
ISO 12944 Environmental Categories:
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C1 – Very Low: Heated indoor spaces with minimal humidity
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C2 – Low: Rural environments with low pollution
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C3 – Medium: Urban or light industrial atmospheres
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C4 – High: Chemical plants, coastal zones
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C5 – Very High: Marine environments, aggressive industrial conditions
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CX – Extreme: Offshore structures, high-chloride exposure, immersed steel
Durability Ratings:
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Low (L): Up to 7 years
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Medium (M): 7 to 15 years
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High (H): 15 to 25 years
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Very High (VH): Over 25 years
Matching the right coating system to your environment and expected service life is key to long-term structural protection and cost savings.
Our ISO 12944 Coating Systems Include:
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Anti-Corrosion Primers for steel and galvanised surfaces
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Abrasion-Resistant Topcoats for high-use industrial zones
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High-Performance Systems for submerged and offshore structures
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Environmentally Compliant Coatings for sustainability-focused projects
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Full Systems for Marine, Bridge, Plant & Infrastructure Applications
Speak with Our ISO 12944 Experts
Whether you’re specifying coatings for a new build or upgrading an existing asset, our team is ready to help you navigate ISO 12944 and deliver the right system for lasting protection.
Let’s ensure your project meets international standards, resists corrosion, and stays protected for decades.
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Download the PPG ISO 12944 Brochure
Download the Jotun ISO 12944 Brochure
Our chosen ISO systems can be found in the tables below:
| System No | Primer Coat Product | Type | No. of Coats | DFT (µm) | Subsequent Coat Product | Type | No. of Coats | DFT (µm) | Topcoat Product | Type | No. of Coats | DFT (µm) | Total DFT (µm) | Total Coats | Low | Med | High | Very High |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C2.01 | Pilot QD | AK | 1 | 40 | Pilot II or Pioner TC | AK/AY | 1 | 40 | N/A | N/A | N/A | N/A | 80 | 2 | ✔️ | |||
| C2.02 | Pilot QD | AK | 1 | 60 | Pilot II or Pioner TC | AK/AY | 1 | 40 | N/A | N/A | N/A | N/A | 100 | 2 | ✔️ | |||
| C2.03 | Pilot QD | AK | 1 | 120 | Pilot II or Pioner TC | AK/AY | 1 | 40 | N/A | N/A | N/A | N/A | 160 | 2 | ✔️ | ✔️ | ||
| C2.04 | Pilot QD | AK | 2 | 80 | Pilot II or Pioner TC | AK/AY | 1 | 40 | N/A | N/A | N/A | N/A | 200 | 3 | ✔️ | ✔️ | ||
| C4.06 | Penguard HSP ZP or Penguard Express ZP | EP | 1 | 120 | Penguard HSP ZP or Penguard Express ZP | EP | 1 | 120 | Hardtop AX or XP | PUR | 1 | 60 | 300 | 3 | ✔️ | ✔️ | ✔️ | ✔️ |
| C4.08 | Barrier 80 | ZnR | 1 | 60 | N/A | N/A | N/A | N/A | Hardtop AX or XP | PUR | 1 | 60 | 60 | 1 | ✔️ | |||
| C4.09 | Barrier 80 | ZnR | 1 | 60 | N/A | N/A | N/A | N/A | Hardtop AX or XP | PUR | 1 | 100 | 160 | 2 | ✔️ | ✔️ | ||
| C4.10 | Barrier 80 | ZnR | 1 | 60 | Penguard HSP ZP or Penguard Express ZP | EP | 1 | 80 | Hardtop AX or XP | PUR | 1 | 60 | 200 | 3 | ✔️ | ✔️ | ✔️ | |
| C4.11 | Barrier 80 | ZnR | 1 | 60 | Penguard HSP ZP or Penguard Express ZP | EP | 1 | 140 | Hardtop AX or XP | PUR | 1 | 60 | 260 | 3 | ✔️ | ✔️ | ✔️ |