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Surface Treatment | professional Eco-Industrial Fluids manufacturer | -NANJING KERUN LUBRICANTS CO.,LTD.

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Surface Treatment | professional Eco-Industrial Fluids manufacturer | -NANJING KERUN LUBRICANTS CO.,LTD.
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The First Brand with Successful Cases in Phosphorus-Free Pretreatment for Passenger Vehicles

In the field of surface treatment, Kerun is among the pioneers in developing and applying new, environmentally friendly phosphorus-free and chromium-free pretreatment and coating technologies. Through continuous innovation, Kerun has independently developed zirconium-based, silane, and nano-ceramic composite technologies, which offer outstanding competitive advantages in performance, environmental sustainability, and energy efficiency.

Process Optimization
Kerun provides surface system solutions tailored to phosphorus-free and chromium-free thin-film technology. Our solutions include surface treatment products with high stability, compatibility, and corrosion resistance, along with professional support and services in industrial planning, equipment, and coatings. With Kerun's assistance, you can achieve:
• Easy treatment of wastewater and solid waste
• Reduced consumption of heat, water, and electricity
• Enhanced occupational health for employees

Class Example

company

Nanjing Kerun Successfully Secures Chery Automobile (Southeast Project) Contract and Achieves Mass Production Recently, Nanjing Kerun secured the Chery Automobile (Southeast Project) contract, successfully initiating production at Chery’s Fuzhou facility. Learn More

Surface Treatment

Kerun provides comprehensive surface treatment solutions for phosphorus- and chromium-free film technologies, including stable, compatible, and corrosion-resistant products, as well as professional support in industrial planning, equipment, and coatings.

  • KR-S210

    The KR-S210 Silane Surface Treatment Agent, used in combination with KR-S211 (Silane Additive), forms a silane polymer-based chemical for metal pre-coating treatment. It reacts at room temperature on surfaces of various metals, such as steel, zinc, and aluminum, creating a durable covalent bond and forming a functional composite hybrid film with a three-dimensional network structure. This provides excellent corrosion resistance and enhances coating adhesion on metal substrates, making it particularly suitable for full-vehicle processing in the automotive industry.

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  • KR-SC100

    Single-component, low-foam, alkaline, phosphorus-free degreaser with strong degreasing capabilities, eco-friendly properties, and ease of use. It is suitable for removing oil from ferrous metal parts, such as cold-rolled and hot-rolled steel plates, in pre-coating processes

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  • KR-SC620

    Phosphorus-Free Alkaline Water-Based Degreaser, designed to be used in combination with KR-SC63L, KR-SC64L, KR-SC63H, and KR-SC64H phosphorus-free water-based degreasers as a dual-component product.

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  • KR-S110

    Phosphorus-free and nickel-free reactive pretreatment chemical designed to enhance coating adhesion and corrosion resistance. Compatible with various types of coatings, KR-S110H is suitable for spray or immersion treatment at room temperature in industries such as home appliances and automotive parts. It can be used for surface pretreatment of metals like steel, galvanized steel, and aluminum alloy before coating.

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Surface Treatment | professional Eco-Industrial Fluids manufacturer | -NANJING KERUN LUBRICANTS CO.,LTD.