COMFORT Polyester-Coated Rolled Steel
The optimal choice for residential construction and standard jobs
As one of the industry’s recognized leaders in zinc-coated steel with polymer coatings, NLMK Group takes a differentiated approach to client needs, delivering superior factory-grade coating quality across all product lines.
Part of NLMK’s polymer-coated portfolio, the COMFORT line features a polyester topcoat. It is a practical solution for a wide range of construction jobs. Manufactured on the same equipment in Lipetsk as the premium PRIME line, COMFORT inherits rigorous quality standards and long service life.
Technology behind the COMFORT line
Same as NLMK’s premium products, this steel features a complex “layer-cake” structure, where each component contributes to its overall durability:
- Steel substrate, produced in-house by NLMK with strict chemical composition control.
- Protective zinc layer, acting as a powerful anti-corrosion barrier.
- Conversion coating and primer, ensuring excellent adhesion.
- Final polyester coating, 25–35 μm thick, forming a smooth and aesthetically pleasing surface.
Polyester enamel is a time-tested industrial solution. It provides an optimal level of protection for structures operating under moderate climatic conditions.
Technical specifications of COMFORT steel
| Parameters | Value | Practical benefit |
|---|---|---|
| Coating thickness | 25–35 µm | Effective protection against mechanical damage and through corrosion |
| Elasticity | ≥6 mm (Erichsen) | High metal ductility combined with reliable coating adhesion enable deep profile forming |
| UV resistance | Class RUV3 | The coating exhibits high fade resistance, helping preserve the original gloss and colour of facades and roofing |
| Official warranty | Up to 28 years against corrosion | Manufacturer-backed service life warranty |
| Colour range | RAL Palette + custom colour matching | Consistent colour accuracy batch-to-batch (within Delta E tolerance) |
Key advantages: Why choose COMFORT
- High flexibility. The ductility of the polyester coating ensures that the top layer will not form micro-cracks during profiling line processing when manufacturing metal tile, corrugated sheeting, or sandwich panels.
- Colour stability. Surface textures and an extensive colour range allow for seamless integration into any architectural concept. NLMK’s production quality control ensures referenced colour consistency for years to come.
- Versatility. It performs equally well in private housing construction and in cladding of large commercial or industrial facilities.
COMFORT line options
The COMFORT line is available in several options, differing in gloss level, surface texture, and coating thickness.
| Gloss level | Texture | Zn mass, g/m² | Corrosion resistance | Thickness, μm | UV resistance | T-bending resistance |
|---|---|---|---|---|---|---|
| Gloss / Semi-matte | Smooth | 140 / 100–275 | RC3 | 25–35 | RUV 2–3 | 1.5–2.0 |
| Deep matte | Wrinkled | 140 / 100–275 | RC3 | 25–35 | RUV 4 | 1.5–2.0 |
The deep matte option with a wrinkled texture delivers the highest UV resistance in the line, Class RUV 4, making it the optimal choice for projects requiring maximum colour retention.
Harmony of NLMK’s Polymer-Coated Steel Product Lines
Within NLMK’s product portfolio, the COMFORT and PRIME lines do not compete. Rather, they complement each other, addressing different needs of the same customer.
- The PRIME line (polyurethane, 35–50 μm, warranty up to 45 years) is designed for projects with elevated environmental and aesthetic requirements (coastal marine zones, high solar radiation, upscale residential developments emphasizing textured or wrinkled finishes).
- The COMFORT line (polyester, 25–35 μm, warranty up to 28 years) is a classic, reliable standard for regular residential, commercial, and industrial construction in moderate climates.
Expert insight from NLMK’s Product Research and Development Division:
“From a reliability standpoint, products from both the PRIME and COMFORT lines meet high quality standards. Both lines are made with premium-grade components. The differences lie in the thickness of the functional layers and the chemical structure of the polymer, allowing the material to be adapted to various operating conditions. COMFORT represents a reliable baseline solution with guaranteed quality and operational stability.”
Applications
The versatility of these products and their balanced properties make them a sought-after solution for a broad spectrum of construction applications.
- Roof and facades: Manufacture of metal tile, siding, soffits, and trim components for low-rise and multi-story buildings.
- Fencing: Durable corrugated sheeting for industrial and residential enclosures.
- Modular construction: Manufacture of exterior and interior sandwich panels for warehouses, hangars, and production facilities.
FAQ: Technical expertise in polyester coatings
What is the fundamental difference between COMFORT coating and PRIME polyurethane coating?
The key differences are the polymer’s thickness and chemistry. COMFORT polyester coating is 25–35 μm thick and offers an RUV 2–4 UV resistance rating, providing anti-corrosion protection for up to 28 years and colour retention for up to 15 years. PRIME polyurethane coating is significantly thicker (up to 50 μm), chemically more inert, and polyamide-modified, yielding superior scratch resistance and extending service life to 45 years. COMFORT provides the best value for money in residential construction in moderate climates.
Is COMFORT steel suitable for metal tile production?
Yes, this is one of the line’s primary applications. The coating’s flexibility allows standard metal tile profiles to be formed without cracking or delamination.
Can COMFORT be used for fencing?
COMFORT steel is widely used to produce corrugated sheeting for residential and industrial fencing. Its atmospheric resistance and extensive colour range enable aesthetically pleasing solutions at a reasonable budget. For facilities exposed to highly aggressive environments, we recommend considering PRIME.
What warranty does NLMK provide for COMFORT steel?
NLMK offers official warranty coverage: up to 28 years against through corrosion (with a 140 g/m² zinc coating) and up to 15 years for colour retention. This meets the requirements of most residential and commercial projects.
Which colours and textures are available in the COMFORT line?
Over 80 colours from the RAL palette: graphite grey (RAL 7024), chocolate brown (RAL 8017), signal white (RAL 9003), moss green (RAL 6005), and others. Surface types include smooth and wrinkled (deep matte). Additional colours can be formulated upon request.
In which climate zones can I use COMFORT steel?
COMFORT steel is optimal for the moderate climates of most Central Russian regions, the Volga region, the Urals, and Siberia. For southern regions with high solar radiation, we recommend the RUV 4 deep matte variant or switching to PRIME.
Technical Support & Ordering
NLMK Group’s direct customer service model and flexible logistics ensure stable deliveries to partners regardless of order quantity.
For a detailed consultation on applying the COMFORT line to your specific project, calculating batch volumes, or selecting colours, please contact experts at NLMK Sales contact centre:
- Phone: +7 (800) 511 30 39
- E-mail: sales@nlmk.com
If you require downstream end products or technical support in working with materials manufactured from NLMK’s polymer-coated steel, our technical specialists would be happy to refer you to qualified partners in your region.