Spray Chroma
ISO 12944 Certified Coating Systems (C1–C5)
Protecting Steel Structures in Every Environment
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Corrosion Protection You Can Rely On
Designed to Perform in C1–C5 Environments
At Spray Chroma, we apply ISO 12944 compliant coating systems that are designed to protect steel and metal surfaces in a wide range of environments. From internal structures in low-risk settings (C1) through to exposed external steelwork in highly corrosive industrial or coastal environments (C5), we ensure every system is specified and applied correctly for long-term performance.
What Are ISO 12944 Coating Systems?
ISO 12944 is the international standard for corrosion protection of steel structures using protective paint systems. It classifies environments based on their corrosivity and defines the appropriate coating systems required to achieve a specific durability.
The main categories include:
- C1 (Very Low) – Heated buildings with clean atmospheres
- C2 (Low) – Rural or low pollution environments
- C3 (Medium) – Urban and light industrial areas
- C4 (High) – Industrial areas or coastal locations with moderate salinity
- C5 (Very High) – Offshore, marine, or highly aggressive industrial environments
Each system is designed with a defined lifespan, such as:
- Low durability (up to 7 years – e.g. C3 Low)
- Medium durability (7–15 years)
- High durability (15+ years)
Our Approach
- Detailed assessment of environment and exposure level
- Identification of required ISO category (C1–C5)
- Specification of correct coating system and build-up
- Surface preparation to required standards
- Professional spray application using approved materials
- Final inspection to ensure compliance with specification
Where These Systems Are Used
ISO 12944 coating systems are used across a wide range of sectors, including:
- Structural steel frameworks
- Warehouses and industrial units
- Car parks and multi-storey structures
- Bridges and infrastructure
- External plant and equipment
- Coastal and marine environments
Why Use ISO 12944 Certified Coatings?
- Ensures compliance with recognised international standards
- Provides predictable lifespan and performance
- Protects against corrosion, weathering, and environmental damage
- Reduces long-term maintenance and repair costs
- Suitable for both new build and refurbishment projects
Why Choose Spray Chroma?
We understand that ISO 12944 systems are not just about applying paint – they require correct specification, preparation, and application to perform as intended.
Our team works closely with clients to ensure:
- The correct system is selected for the environment
- Application meets required standards
- Disruption on site is kept to a minimum
- The final result is both protective and visually consistent
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Our ISO 12944 Coating Application Process
Thorough Inspection:
We assess the structure, environment, and level of exposure to determine the correct ISO classification and coating requirements.
Customised Specification:
We specify a tailored ISO 12944 compliant system, including full coating build-up and durability requirements (e.g. C3 Low, Medium, or High systems).
High-Quality On-Site Application:
Our team applies coatings using professional equipment, ensuring consistent coverage, correct film thickness, and protection of surrounding areas.
Certified Project Completion:
We carry out a final inspection to confirm the coating system meets the required specification and performance standards.
Accreditations
Our paint spraying teams are fully qualified and accredited by a range industry bodies, demonstrating the professional level of our on site spraying and coating services and why you should trust in Spray Chroma to deliver commercial paint spraying solutions of a high scale.
Choosing Spray Chroma for Your ISO 12944 Coating Requirements
You’re investing in a compliant coating system designed to protect your structure and extend its lifespan. Contact us today to find out how we can deliver a solution tailored to your environment and performance requirements.