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Surface Treatment & Protection Fluid Solutions

Cleaning · Corrosion Protection · Pre-paint Treatment

Centered on process-chain integration, we build a stable interfacial system from cleaning to protection and pre-paint treatment, ensuring every surface state is controllable, repeatable, and verifiable.

Process Challenges

Hidden Defects, Visible Costs: The Challenge of Surface Integrity

When cleaning, corrosion protection, and pre-paint treatment are optimized independently, discontinuous interfaces, uncontrolled residues, and protection failures become key sources of quality variation.

  1. Residue & Rework

    Conventional cleaners struggle with heavy-duty oils. Residual white spots or oil marks after drying compromise coating adhesion and elevate scrap rates.

  2. Flash Rusting

    In humid environments or due to handling, machined parts are prone to micro-rust during transit, jeopardizing assembly accuracy.

  3. Performance Trade-off

    Long-term rust preventive oils are thick and hard to clean; thin oils fail to withstand salt spray during ocean transport.

  4. Compliance Pressure

    Legacy treatments containing phosphorus or nitrites face stringent wastewater treatment demands and VOC emission limits.

KERUN Solution Approach

Intelligent Protection System Based on Interfacial Chemistry

    Industrial Cleaning

    Designed for heavy oil and particulate contaminants, our eco-friendly aqueous cleaning system utilizes interfacial activity technology to aggressively strip impurities from deep within the pores. We ensure absolute substrate cleanliness, providing a flawless foundation for subsequent processes and preventing coating blisters and delamination.

    Rust Prevention

    Moving beyond traditional oil films, we employ VCI (Vapor Corrosion Inhibitor) and nano-rust prevention technologies. Molecular-level adsorption creates a dense protective barrier that blocks moisture and oxygen pathways. With superior water displacement properties, we guarantee up to 24 months of static preservation, even in high-humidity environments.

    Coating Pretreatment

    Utilizing silane technologies, we construct a micro-crystalline conversion layer on the metal surface. This process not only removes oxidation but creates a dense "anchor pattern" structure, boosting coating adhesion by up to 300%. It significantly enhances salt spray resistance, ensuring the finish remains durable and pristine.

    Manage Performance through LMS

    Monitoring, maintenance, replenishment, and service records help stabilize long-term surface treatment and protection performance.

Product Systems

Recommended Product Systems for Reliable Process Performance

KERUN recommends surface treatment & protection product systems according to material, previous process, surface condition, corrosion target, protection duration, downstream coating or assembly requirements, and storage environment.

  • Thin-layer Antirust Oil KR-AOD330PLUS | Rust Prevention Oil |

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    Aqueous Rust Inhibitor

    Eco-friendly corrosion protection extends storage life and reduces corrosion risks.

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  • Thin-layer Antirust Oil KR-AOD330PLUS | Rust Prevention Oil |

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    Metal Cleaning

    Designed for steel pipe processing to ensure efficient degreasing and downstream quality.

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  • Phosphorus-Free Degreaser KR-SC100 | Phosphorus-free Degreaser |

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    Phosphate-free Degreasing Agent

    Phosphate-free pretreatment technology enables efficient degreasing and green manufacturing.

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  • Featured

    Phosphate-free Film Treatment Agent

    Phosphate-free conversion treatment improves coating adhesion and corrosion resistance.

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  • Thin-layer Antirust Oil KR-AOD330PLUS | Rust Prevention Oil |

    Featured

    Solvent-based Rust Oil

    Fast film-forming protection for diverse rust prevention applications.

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  • Typical Applications

    Built for Surface-Critical Manufacturing Stages

    Surface treatment fluid performance is important where cleanliness, corrosion protection, and downstream compatibility determine final product quality.

    • Automotive stamped parts, machined parts, gears, shafts, and assembly components
    • Steel products requiring cleaning, protection, and surface readiness
    • Construction machinery parts exposed to storage and transport conditions
    • Universal metal parts, hardware, fasteners, and precision components
    • Aerospace and robotics parts requiring controlled surface condition

    Discuss Your Surface Treatment Requirements with KERUN

    Share your material, current surface condition, previous process, downstream process, corrosion target, and storage or transport conditions. KERUN’s technical team can help recommend a suitable surface treatment system.