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Preparation: PerfPRO

PerfPRO is the innovative, robust, and durable coating from SCHÄFER Perforated Metal – specifically developed for perforated steel sheets and designed for maximum performance in harsh environments.

   

  • Minimal coating thickness
  • Maximum airflow
  • Long-lasting corrosion protection

“Our independent testing confirms the uniform, metallic 3D coating of PerfPRO—free from edge pull-back and defects. Its thin-film build increases airflow and delivers significantly better cooling performance than conventional coatings.”
- Quote from the report of an independent institute

Minimum application – Maximum air flow

The metallic corrosion protection is applied uniformly after perforation. This keeps the edge fully protected, the layer is up to 50% thinner than with conventional processes, and airflow increases by more than 20%—a clear advantage for engine cooling in construction equipment, agricultural machinery, and commercial vehicles.

Why PerfPRO?

Corrosion protection beyond the standard, a homogeneous layer right up to the edge, and mechanical robustness: In salt spray tests according to DIN EN ISO 9227 NSS:2023-03, 1,008 h were achieved; adhesion—incl. thermal shock—was confirmed per DIN EN ISO 2819:2018-09. At the same time, the thin, uniform application reduces material usage, eases recycling, and—unlike e-coat (KTL) systems—avoids microplastic emissions, improving the environmental footprint.

Integrated manufacturing—from coil to coating—ensures short routes and reliable delivery times.

“While the standard for black-passivated surfaces per DIN EN ISO 19598:2017-04 requires only 720 hours without base-material corrosion, PerfPRO clearly exceeded this with 1,008 hours. The coating therefore meets the highest demands for durability and corrosion resistance.”

Josef Andrek, Managing Director, Institute for Electroplating and Surface Technology Solingen (IGOS)

Variants

01

Minimal application – maximum air flow: The 50 per cent thinner coating enables more than 20 per cent improved air permeability – an important advantage for engine cooling, among other things.

02

No edge misalignment and no imperfections: uniform, homogeneous layer thickness right up to the edge

03

Maximum corrosion resistance and longer service life thanks to innovative coating

04

Maximum reliability in harsh applications: Proven quality – exceeding the standard in salt spray testing in accordance with DIN EN ISO 9227 NSS:2023-03 over 1,008 hours

05

Protection against mechanical stress in harsh operating conditions and different climate zones: Mechanical robustness confirmed in accordance with DIN EN ISO 2819:2018-09

06

Highest precision and quality: integrated manufacturing from a single source, punching and coating technology perfectly coordinated

07

Sustainable and resource-efficient: less material used, no microplastic pollution as with cathodic electrocoating processes, recycling-friendly, with an optimised ecological footprint

08

Customised solutions: More than 400 available hole patterns cover a wide range of individual requirements

09

Ideal for mobile and stationary applications: Maximum corrosion protection for perforated sheet metal applications in vehicle construction and the building industry

10

Optical customisation and additional protection: PerfPRO+ with powder coating in custom colours according to customer requirements

Applications

PerfPRO is ideal wherever airflow management and durability matter: ventilation and protective grilles, covers, and lightweight components on construction and agricultural machinery as well as commercial vehicles.

The procedure

Perforating → Deburring → PerfPRO (coating after perforation, including edge coverage) → optional PerfPRO+ (powder) → Quality assurance.

Perforated metal configurator

Use now

Use our specially developed perforated sheet configurator today to select your material and define the hole pattern, size, and spacing.

Try the perforated sheet configurator now

Key technical data

  • Performance: 50% thinner coating, 20% higher airflow
  • Durability: 1,008 h NSS according to DIN EN ISO 9227:2023-03; adhesion tested per DIN EN ISO 2819:2018-09
  • Portfolio: > 400 perforation patterns, material thicknesses 0.75–3.0 mm, open area depending on geometry up to 80%

Sustainability

The thin, metallic layer structure reduces material consumption, avoids microplastics, is recycling-friendly, and thus improves the environmental footprint of your application.

FAQ
How does PerfPRO differ from KTL?

PerfPRO is a metallic coating with a uniform edge application and a thin layer thickness—resulting in increased airflow and zero microplastic emissions.

Is the edge reliably protected?

Yes. The coating is applied after perforation and uniformly covers the cut edges—without edge run-off or defects.

When is PerfPRO+ recommended?

When corporate colors, additional abrasion or UV resistance, or design integration are required, PerfPRO+ enhances the protective layer with a powder coating in the desired color.

Get in touch with us

Our experts are happy to provide you with further information about our services or offer individual advice. Please use our contact form to send us a non-binding enquiry, and we will get back to you as soon as possible.

Discover the quality and diversity of our manufacturing capabilities at SCHÄFER Perforated Metal!

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