金属处理与防护类

除油剂、除锈剂、脱漆剂与除混凝土剂；表面清洁剂、水处理化学品、吸附剂及金属处理化学品。

Metal treatment and protection chemicals are used to prepare metal surfaces for suitable subsequent processing and to protect them against corrosion during production, machining, painting, coating, maintenance and storage processes. Oil, grease, rust, oxides and other contaminants remaining on metal surfaces from production or previous processes can directly affect the interaction between the surface and subsequent paint or coating systems. Surface preparation is therefore one of the fundamental stages of metal treatment processes. Operations such as degreasing, rust removal and phosphating are performed not only to remove undesirable residues from the surface but also to create a controlled surface condition suitable for subsequent processing.

Alkaline degreasing systems used prior to painting and coating help remove oily and process-related contaminants from metal surfaces, while acidic rust removers are used to remove oxide and corrosion layers. In surface preparation processes where degreasing, rust removal and phosphating are performed together, the metal surface is both cleaned and prepared for subsequent painting or coating. In suitable applications, phosphating is an important surface treatment method used to support paint adhesion and corrosion resistance.

The condition of the surface after cleaning is also important in metal treatment processes. Following acidic or alkaline treatments, processes such as neutralization, ion control and temporary corrosion protection can help maintain the metal under suitable conditions until painting or the next production stage. Similarly, pre-paint corrosion prevention, temporary protection of molds and metal surfaces, and wax-based protection applications are considered complementary areas within this group.

For these reasons, the Metal Treatment and Protection Group is a comprehensive industrial chemical category that addresses degreasing, cleaning, rust removal, phosphating, neutralization, surface preparation and corrosion protection as complementary technical processes.

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金属处理与防护类

产品系列、性能与应用

Concentrated Pre-Paint Alkaline Pre-Degreaser and Cleaner

基材: Concentrated blend based on alkaline salts, surfactants, complexing agents and oil-emulsifying components
包装选项: 20 kg jerry can, 200 kg drum, optional custom packaging
品牌: SENTA FREMEX

A concentrated alkaline surface preparation product used to remove oil, grease, machining fluids, fingerprints and production-related contaminants from metal surfaces prior to painting and coating processes. In metal pretreatment processes, degreasing is one of the fundamental preparation stages required to ensure that subsequent surface treatments can be carried out in a controlled and uniform manner.

The alkaline cleaning mechanism promotes the dissolution, emulsification and separation of oily contaminants from metal surfaces. Depending on the application and formulation, the product can be used in spraying, immersion or suitable industrial washing systems. Concentration, temperature, contact time and mechanical action are the key process parameters determining cleaning performance. After treatment, the surface should be properly rinsed and transferred to the subsequent surface preparation stage under controlled conditions. The type of metal should also be considered when selecting the product; material compatibility should be evaluated separately, particularly for surfaces such as aluminum that are more sensitive to alkaline chemicals.

Concentrated Neutralizer and Protective Ion-Sequestering Agent

基材: Concentrated blend based on neutralizing alkaline components, chelating agents, ion-sequestering agents and corrosion inhibitors
包装选项: 20 kg jerry can, 200 kg drum, optional custom packaging
品牌: SENTA IONAX

A concentrated process chemical used in industrial surface treatment and cleaning processes to balance surface conditions following previous chemical treatment stages and to control undesirable metal ions. While its neutralizing function helps control acidic or alkaline effects carried over from previous treatment stages, ion-sequestering components form complexes with calcium, magnesium, iron and similar ions, helping to limit deposits and surface residues that these ions may cause in subsequent processes.

The product can be used as an intermediate or complementary treatment in metal surface preparation, cleaning and pre-coating processes. During application, concentration, pH, contact time, bath temperature and the chemical load carried over from the previous treatment stage should be controlled together. Sequestering ions and balancing surface conditions help provide a more controlled surface transition to the subsequent processing stage. The product’s application parameters should be determined in accordance with the relevant technical documentation, taking into account the specific process and type of metal being treated.

Concentrated Pre-Paint Degreaser, Rust Remover and Phosphating Agent

基材: Concentrated blend based on phosphoric acid, phosphate salts, surfactants and corrosion inhibitors
包装选项: 20 kg jerry can, 200 kg drum, optional custom packaging
品牌: SENTA METMAX

A multifunctional surface treatment chemical used to prepare metal surfaces prior to painting and coating processes. The product supports the removal of oily contaminants and light process residues from metal surfaces, the removal of rust and oxide layers, and the formation of a phosphate-based conversion layer as part of an integrated surface preparation process. Phosphating creates a chemical conversion layer on the clean metal surface, helping to provide a suitable substrate for subsequent painting or coating applications.

The product can be used particularly for the surface preparation of steel and suitable metal parts prior to painting, powder coating or similar coating processes. During application, product concentration, process temperature, contact time, the amount of oil and rust present on the surface, and the type of metal should be considered together. Proper rinsing and drying after treatment are important for controlling chemical residues on the surface and maintaining the stability of the subsequent coating process.

Industrial Immersion-Type Paint Stripper

基材: Blend based on strong organic solvents, paint-film-dissolving components and penetration aids
包装选项: 20 kg jerry can, 200 kg drum, optional custom packaging
品牌: SENTA COATEX

A technical surface treatment product used for the chemical removal of old, defective or deteriorated paint and coating layers from metal parts. During application, parts are immersed in a suitable treatment tank containing the paint stripper. As the chemical penetrates the paint layer, the coating structure weakens, its adhesion to the surface decreases, and the paint can subsequently be removed by mechanical or rinsing processes. The immersion method is particularly suitable for the controlled treatment of complex-shaped components and large quantities of parts.

The product can be used for reworking incorrectly painted parts on production lines, cleaning hangers and fixtures, refurbishing maintenance parts and preparing metal surfaces for recoating. Processing time varies depending on the type of paint, coating thickness, metal type, bath temperature and chemical composition of the product. After treatment, stripped paint residues should be removed, the surface properly rinsed and prepared for the subsequent surface treatment process. Tank material, ventilation, personal protective equipment and chemical compatibility should be determined in accordance with the relevant technical documentation.

Industrial Gel Paint Stripper

基材: Blend based on organic solvents, paint-film-dissolving active components, penetration aids and thickening agents
包装选项: 20 kg jerry can, 200 kg drum, optional custom packaging
品牌: SENTA PAINTEX

A high-viscosity surface treatment product used for the chemical removal of old, defective or deteriorated paint and coating layers from metal, concrete and other suitable technical surfaces. Its gel form helps limit product run-off, particularly on vertical, inclined and localized surfaces, allowing sufficient contact time with the paint layer to be maintained. As a result of the chemical action, the paint or coating layer softens, blisters and loses adhesion to the surface, after which it can be removed using suitable mechanical methods.

The product can be used for the maintenance of machinery and equipment, refurbishment of metal structures, reworking of incorrectly painted parts and preparation of surfaces for new coating applications. Application performance depends on the type of paint, coating thickness, surface material, amount of product applied and contact time. Material compatibility should be checked in advance, particularly on aluminum, galvanized surfaces, plastics and sensitive coated surfaces. After treatment, stripped paint residues should be removed and the surface properly cleaned and prepared for the subsequent process.

Mold Protection Product - 1 Year

基材: Blend based on corrosion inhibitors, film-forming protective components and hydrocarbon carriers
包装选项: 20 kg jerry can, 200 kg drum, optional custom packaging
品牌: SENTA MOLDAX

A technical surface protection product used to protect metal molds against rust and corrosion during periods when they are out of service, stored or kept between production cycles. Particularly in plastic injection, rubber, metal forming and similar mold systems, the objective is to limit the exposure of machined metal surfaces to moisture, air and environmental contaminants. Protective products can help control atmospheric corrosion by forming a barrier film on the metal surface.

Before application, oil, process residues, moisture and existing corrosion products should be removed from the mold surface using appropriate methods. Uniform application of the protective layer is important with regard to mold geometry, storage conditions and the intended protection period. The one-year protection period should be evaluated together with actual storage conditions and the application requirements specified in the product’s technical documentation. Whether the protective film needs to be removed before the mold is returned to production should be determined according to the subsequent process and product requirements.

Wax Protection Product - 1 Year

基材: Blend based on microcrystalline waxes, corrosion inhibitors, film-forming components and hydrocarbon carriers
包装选项: 20 kg jerry can, 200 kg drum, optional custom packaging
品牌: SENTA METALEX

A wax-based technical surface protection product used to protect metal surfaces against rust and corrosion caused by atmospheric exposure during storage, holding, transportation and intermediate production stages. The protective film formed on the surface after application helps control corrosion by limiting direct contact between the metal and moisture, air and environmental contaminants. Similar protective film systems are used to protect unpainted metal parts during storage and transportation.

The product can be used for the temporary or medium-term protection of machined metal parts, machine components, spare parts, molds and metal equipment intended for storage. Before application, oil, dirt, moisture and corrosion residues should be properly removed from the surface. The uniformity and thickness of the protective film, storage environment and surface preparation directly affect protection performance. The one-year protection period should be evaluated together with the application and storage conditions specified in the product’s technical documentation. The wax layer may need to be removed before subsequent painting, coating or assembly processes.

Pre-Paint Corrosion Preventive Agent

基材: Blend based on corrosion inhibitors, passivating agents and surface-active components
包装选项: 20 kg jerry can, 200 kg drum, optional custom packaging
品牌: SENTA CORREX

A technical process chemical used to control re-oxidation and corrosion of metal surfaces during the period between cleaning, degreasing, rust removal or surface preparation and subsequent painting or coating. Particularly on cleaned iron and steel surfaces, it helps limit the formation of surface rust caused by exposure to moisture, oxygen and process water. Products of this type can be used as part of an intermediate protection or passivation stage in pre-paint metal preparation processes.

Depending on the process design, application can be carried out by immersion, spraying or suitable surface treatment systems. Product concentration, pH, contact time, metal type, surface cleanliness and drying conditions are key parameters affecting process performance. It is important that the protective effect does not adversely affect the adhesion of the subsequent paint or coating system. Therefore, product selection and application conditions should be determined by considering compatibility with the coating system to be applied and the manufacturer’s technical documentation.

Concentrated Pre-Bath Holding / Neutralizing Product - 1 Week

基材: Concentrated blend based on neutralizing alkaline components, corrosion inhibitors, complexing agents and surfactants
包装选项: 20 kg jerry can, 200 kg drum, optional custom packaging
品牌: SENTA STORAX-A

A concentrated process chemical used for the controlled holding of metal parts before they enter the main surface treatment bath and for balancing chemical effects that may be carried over from previous processes. Particularly during intermediate holding stages for parts that cannot be processed immediately within the production flow, it helps maintain surface conditions and enables a more controlled transfer to the subsequent chemical bath. Neutralization processes are important in sequential surface preparation operations for limiting the influence of previous chemical treatment stages on subsequent processes.

The product can be used in metalworking, surface preparation and coating processes where intermediate holding of parts for up to approximately one week is required. Application concentration, bath pH, metal type, chemistry of the previous treatment, holding time and environmental conditions should be controlled together. The one-week holding period should not be considered a fixed performance value, but should be evaluated together with the process and environmental conditions specified in the product’s technical documentation. Any rinsing or additional preparation required before the subsequent surface treatment should also be determined according to the relevant process conditions.

Concentrated Pre-Bath Holding / Neutralizing Product - 3 Weeks

基材: Blend based on neutralizing alkaline components, long-term corrosion inhibitors, complexing agents and surfactants
包装选项: 20 kg jerry can, 200 kg drum, optional custom packaging
品牌: SENTA STORAX-B

A concentrated process chemical used for holding metal parts for a specified period before they are transferred to the main surface treatment bath, balancing surface conditions and controlling chemical effects that may be carried over from previous processes. It can be used particularly in processes where parts need to be held under controlled conditions between surface treatment stages due to production planning requirements. In metal surface treatment processes, intermediate protection and neutralization stages help maintain the surface in a suitable condition for transfer to the subsequent coating process.

During use, product concentration, bath pH, metal type, surface cleanliness, chemicals carried over from the previous treatment and environmental conditions should be evaluated together. The three-week holding period should not be regarded as a fixed value applicable under all conditions, but should be considered within the process conditions specified in the product’s technical documentation. After the holding period, any requirements for rinsing, recleaning or surface activation should be determined according to the subsequent surface treatment process.