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Metal surface treatment – precision and durability with Protec

Metal surface treatment is a critical production stage that impacts both the appearance and performance of finished parts, from corrosion resistance to coating adhesion. At Protec, processes are tailored to each component to achieve consistent results that meet aesthetic and technical specifications. Materials and abrasives are selected to match your tolerances, surface class, and downstream processes.

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Machine park for metal surface treatment

A modern machine park enables effective metal surface treatment for carbon steel, stainless steel, and non-ferrous metals. Processes include cleaning, deburring, smoothing, and preparation for coatings, ensuring repeatability across prototypes and series production.

Shot blasting and vibratory finishing

  • Shot blasting – intensive cleaning and preparation for further processes, removing rust, scale, and paint, and creating a uniform texture.

  • Vibratory finishing – even finish and burr removal, smoothing edges and achieving a consistent surface profile.

  • Polishing and brushing – aesthetic refinement to defined gloss or matte while reducing roughness.

Why choose Metal surface treatment at Protec

  • Tailored process parameters for each part and material.

  • Repeatable surface quality supporting painting, powder coating, or galvanic finishes.

  • Quality control at each stage for geometry, roughness class, and visual standards.

  • Clear lead times and transparent communication.

End finishing of metal parts

End finishing bridges machining and protective finishing by stabilizing surface quality before coating or assembly. Steps include assessment and media selection, surface preparation, primary treatment (shot blasting or vibratory finishing), and final quality verification with documentation on request.

Typical applications

  • Construction and HVAC parts requiring stable coating adhesion.

  • Machinery and automotive components needing deburring and smoothing.

  • Stainless steel elements with uniform matte or satin finish.

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Request Metal surface treatment details

Send part drawings or a brief specification, and the team will recommend the optimal process – from shot blasting to vibratory finishing – including media selection and surface class guidance. You will receive feedback on feasibility, lead time, and recommended surface preparation for coatings.

Upstream processes and related services

  • Improve upstream precision with CNC machining before finishing to stabilize tolerances ahead of Metalworking steps and coatings.
  • For series parts and tight tolerances, see Machining to ensure consistent dimensions prior to metal surface treatment.
  • Explore Metalworking for related processes from forming to welding and assembly.

Looking for consistent finishes?

Choose Protec for Metal surface treatment aligned with your coating and quality requirements.