As a new foreign trade service provider driven by technology transformation and export business, HiSiaddi has established the "1+2+3+4=1" service system and can supply molybdate composite corrosion inhibitors sourced directly from multiple well-known original manufacturers. With R&D capabilities, HiSiaddi frequently collaborates with manufacturers on technology conversion and accurately captures market demands to resolve customized development requests for molybdate composite corrosion inhibitors. Below is a case illustrating how HiSiaddi delivered a customized molybdate composite corrosion inhibitor solution.
Contact HiSiaddi customer service for further customized service inquiries.
The cooperating client is FIN ENERGY, a high-end energy group headquartered in Helsinki, Finland. As a renowned regional operator of district heating, geothermal circulation and industrial heat exchange systems across Northern Europe, it serves high-end municipal heating projects, biomedicine industrial parks and precision manufacturing energy stations. The company complies with Northern Europe’s strict TAF environmental standards, EU REACH regulation and low-toxicity ecological control systems, representing a typical mid-to-high-end industrial client with stringent requirements and zero risk tolerance.
Core Client Pain Points: Northern Europe enforces extremely rigorous environmental regulations, completely banning traditional high-phosphorus and high-nitrite corrosion inhibitors, forcing the adoption of low-toxicity molybdate-based systems. However, locally sourced European molybdate corrosion inhibitors carry exorbitant prices and lengthy lead times. For its first procurement shift to Chinese suppliers, the client required a fully customized molybdate composite corrosion inhibitor tailored to Northern Europe’s high-temperature, low-hardness and long-cycle circulating working conditions.
The client purchases 52 tons of customized molybdate composite corrosion inhibitor annually for anti-corrosion protection in large closed circulating cooling water pipelines, high-temperature heat exchange pipe networks and geothermal energy circulation systems.
After preliminary communication with multiple domestic manufacturers, the client only received generic low-end single-component molybdate formulations plagued by poor solubility, low-temperature precipitation, insufficient corrosion inhibition efficiency, high required dosage and poor compatibility. None of these products could meet the long-term stable operation standards of Northern Europe’s high-end energy systems, leaving the customization project unachievable. The client finally entrusted HiSiaddi with full responsibility for formula R&D, process customization, testing verification and mass production delivery.
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Extremely Harsh Working Conditions The client’s closed high-temperature circulating water systems operate at 45–75°C under low-hardness pure water conditions, with mixed metal components including carbon steel, copper and stainless steel, requiring universal corrosion protection for multiple metals. Conventional single-component molybdate formulas only protect carbon steel and provide inadequate shielding for copper.
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Mandatory Low-Dosage, High-Efficiency Performance Indicators Northern European projects mandate low dosing rates with outstanding corrosion inhibition performance:
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· Conventional domestic molybdate formulations require a dosage of 80–120ppm
· Client requirement: stable performance at a dosage ≤45ppm
· Maximum allowable corrosion rate: carbon steel ≤0.02mm/a, copper ≤0.005mm/a
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Ultra-Strict Low-Temperature Stability Requirements Warehouse temperatures drop to -8°C in Finland during winter. Generic composite molybdate formulas readily crystallize, layer and precipitate molybdate solids, resulting in chemical failure and pipeline blockages.
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Zero Residue, Low-Toxicity and Biodegradable Environmental Compliance Formulations must be phosphorus-free, nitrite-free and heavy-metal-free, with low ecological toxicity and no bioaccumulation to comply with Northern Europe’s strict surface water discharge regulations.
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Strong Compatibility with Coexisting Chemicals The inhibitor must coexist long-term with the client’s existing non-oxidizing biocides and organic scale inhibitors without precipitation or antagonistic efficacy loss over 3 months. Generic formulas commonly experience offset active performance and system turbidity.
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HiSiaddi assembled a cross-functional team of water treatment formula R&D specialists, metal anti-corrosion engineers and Northern European working condition technical experts. Abandoning all off-the-shelf mass-production formulas, the team developed an entirely new composite formulation to address the client’s five stringent requirements, completing lab testing, pilot testing and stable mass production within 26 days.
1. Restructured Core Molybdate Composite System to Resolve Low Efficiency & High Dosage Issues Discarding crude single sodium molybdate formulations widely used domestically, a ternary composite system combining ammonium molybdate, organic carboxylate and special chelating slow-release factors was adopted:
· Greatly accelerated film formation and adsorption speed on metal surfaces
· Enables dense protective film generation at an ultra-low dosage of 45ppm
· Simultaneously delivers corrosion protection for carbon steel, copper and stainless steel
· Eliminates critical drawbacks of conventional molybdates: excessive dosage, weak performance and single-metal compatibility
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Addition of Low-Temperature Anti-Crystallization Stabilizers to Eliminate Northern European Low-Temperature Precipitation Environmentally friendly polyol low-temperature solubility stabilizers were compounded to optimize molecular solubility and miscibility of molybdate salts. Lab verification: No crystallization or stratification after 30 days of static storage at -10°C, fully compatible with Finnish warehouse storage and low-temperature water replenishment working conditions.
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Fully Customized Phosphorus-Free, Nitrite-Free, Low-Toxicity Eco-Friendly Formulation Food-grade eco-friendly raw materials were utilized throughout production, eliminating all phosphorus-containing, nitrite and heavy-metal additives. SGS test results confirm zero phosphorus, zero nitrite, low biological toxicity and non-bioaccumulative properties, fully satisfying Northern Europe TAF and REACH high-grade environmental compliance standards.
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Optimized Coexistence Compatibility System to Prevent Efficacy Antagonism 80 groups of compatibility tests were conducted simulating the client’s three biocide variants and two scale inhibitor types. Buffer systems and additive ratios were precisely calibrated to guarantee:
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· Permanent clarity without stratification or turbidity under long-term coexistence
· No offset of biocidal and scale-inhibiting efficacy
· Long-term stable water quality within the system
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High-End Quality Control for Zero Batch Fluctuations A dedicated customized production line was launched with independent feeding, reaction kettles and filling equipment. All reaction temperatures, component ratios and stirring parameters were standardized, limiting deviations of molybdenum content and buffer values and active components to ≤0.15%, meeting traceability and audit requirements for high-end energy projects.
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Full Set of Northern Europe-Compliant Technical Documentation Bilingual TDS/SDS, Northern Europe ecological compliance declarations, low-toxicity test reports, measured corrosion rate reports and formula traceability documents were issued to support on-site project audits and regulatory inspections in the client’s region.
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100% of customized indicators achieved compliance Stable operation maintained at the ultra-low dosage of 45ppm; actual carbon steel corrosion rate reached 0.018mm/a and copper corrosion rate 0.004mm/a, exceeding the client’s performance standards and completely eradicating pipe network corrosion, pitting and red rust issues.
Stable performance under extreme working conditions No precipitation during winter low-temperature storage or decomposition under high-temperature operation; zero fluctuations in water quality and chemical performance year-round.
Sharp reduction in client operation and maintenance costs Compared with European imported chemicals, comprehensive procurement costs dropped by 38%, and the required dosing volume was nearly halved, drastically cutting chemical consumption.
Full marks for project acceptance All batches maintained stable indicators with complete compliant documentation, passing third-party audits for Finland’s energy project with full approval.
Long-term exclusive strategic cooperation The client fully replaced its long-standing European supplier and signed a 5-year annual framework agreement with HiSiaddi, raising annual procurement volume to 65 tons and entrusting HiSiaddi with exclusive customized supply of anti-corrosion chemicals for all closed circulation systems under its portfolio.
High-end Northern European energy, heat exchange and closed circulation system clients demand far more than basic rust prevention from molybdate corrosion inhibitors; core requirements include low-toxic eco-friendliness, ultra-low dosing rates, multi-metal compatibility, wide-temperature stability, long-term coexistence safety and zero batch fluctuations.
Ordinary domestic manufacturers can only supply generic crude formulations unable to overcome bottlenecks of high-end working conditions. Leveraging independent formula reconstruction capabilities, customized R&D for specific working conditions, full-link quality control and international compliance documentation support, HiSiaddi delivers import-grade quality with cost-controllable domestic pricing through exclusive customized formulations, thoroughly resolving core pain points for high-end overseas clients and delivering irreplaceable technology-driven foreign trade value.
Contact HiSiaddi customer service for further customized service inquiries.
+86-13120989737 
info@hisiaddi.com 
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