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SURTEC ENGINEERING
METAL SURFACE TREATMENT

OUR SERVICES

At Surtec Engineering, we specialize in comprehensive metal surface treatment solutions designed to enhance corrosion resistance, surface cleanliness, and aesthetic appearance.
Our treatments comply with international standards and are performed by experienced technicians to ensure consistent and high-quality results for every job.

stainless-steel-pickling
Stainless steel pickling and passivation
Our pickling process removes oxide scales, welding discoloration, and heat tint from stainless steel surfaces using controlled acid solutions.After pickling, passivation enhances the stainless steel’s corrosion resistance by forming a protective chromium oxide layer. We follow international standards such as ASTM A380 and A967 to ensure long-lasting protection.
phosphating
Conversion coating / phosphating / anitirust
We offer several types of phosphate conversion coatings, each tailored for different applications and performance needs: 

  •  Iron Phosphate Coating Ideal as a pretreatment before painting or powder coating, it enhances coating adhesion and provides basic corrosion resistance for mild steel and iron parts. 
  •  Zinc Phosphate Coating Offers excellent corrosion resistance and serves as an effective base for paint, oil, or other surface finishes. Commonly used in automotive, machinery, and general engineering industries.
  • Manganese Phosphate Coating Provides a dense, wear-resistant surface ideal for moving or load-bearing parts such as gears, bolts, and bearings. It also reduces friction when used with lubricants.
polishing
Electropolishing / mechanical polishing / brightening
  • Electropolishing is an electrochemical process that removes a thin layer of metal from the surface, producing a smooth, bright, and highly passive finish.
    It improves corrosion resistance, reduces surface roughness, and removes embedded contaminants that mechanical polishing cannot eliminate.
  •  Our mechanical polishing service uses precision grinding and buffing techniques to produce uniform finishes — from dull matte to mirror gloss, depending on your requirement.
    We handle components of various sizes, from small parts to large tanks and fabrications.
  • Chemical brightening provides a lustrous and reflective finish without mechanical abrasion.
    It is ideal for complex geometries where mechanical polishing is difficult, offering a uniform and clean appearance across the entire surface.

blackening
Blackening (Black Oxide Coating)
We offer professional blackening (black oxide coating) services for steel and stainless steel components.
This chemical conversion process forms a thin, durable oxide layer on the metal surface, giving it a deep black, satin finish without altering dimensions or affecting tolerances.

rust_removing
Rust removing

we provide professional rust removal services to restore metal surfaces to a clean, corrosion-free condition.
Using specialized acid-based and chemical cleaning treatments, we effectively remove rust, oxide scale, and surface contaminants without damaging the base metal — preparing it for repainting, coating, or further surface treatment.

on_site_pickling
On-Site Service

At Surtec Engineering, we understand that some equipment and structures — such as large tanks, pipelines, and fixed installations — cannot be easily transported for surface treatment.
That’s why we offer a complete on-site surface treatment service, allowing our team to perform pickling, passivation, cleaning, and polishing directly at your facility.

Our mobile service team is fully equipped with all necessary tools, safety systems, and chemicals to carry out professional stainless steel surface treatments under controlled and environmentally compliant conditions.
We follow strict safety procedures to ensure minimal disruption to your operations and full compliance with Department of Environment (DOE) Malaysia regulations.