As a new-type foreign trade service provider driven by both technology transformation and foreign trade business, HiSiaddi has built a service system of "1+2+3+4=1" and can supply original factory sources of HPAA water treatment agents from multiple well-known brands. Equipped with independent R&D capabilities, HiSiaddi has repeatedly resolved customized product demands for clients through technical cooperation with manufacturers and accurate market insight. Below is a case of HiSiaddi addressing customized requirements for HPAA water treatment agents.
For more customized service inquiries, please contact HiSiaddi customer service.
The purchaser is SWISS PRECISION, a high-end precision equipment manufacturer based in Zurich, Switzerland. The enterprise specializes in the production of premium precision machine tools and optical instruments, with multiple sets of closed circulating cooling water systems and process soft water systems deployed across its plant to serve the high-end precision manufacturing industrial chain in Europe. It strictly complies with Swiss SN Standards, EU Water Framework Directive and OECD biodegradation standards, and prioritizes low-phosphorus, low-toxicity and high-stability chemical agent solutions, representing a typical mid-to-high-end European industrial client.
The client procures HPAA (2-Hydroxyphosphonoacetic Acid) on an annual basis for composite pipeline systems consisting of carbon steel and copper alloys. Its core customized requirements include high-purity, low-impurity formulations with strong corrosion inhibition, compatibility with zinc salt compound systems, superior biodegradability and zero batch-to-batch performance fluctuation. The annual procurement volume stands at 22 tons, delivered in 5 separate batches.
Prior to cooperation with HiSiaddi, the client encountered frequent technical failures after trialing domestically supplied general industrial-grade HPAA. Meanwhile, custom-made products manufactured locally in Europe came with exorbitant prices and a lead time of up to 10 weeks. After comprehensive evaluation, the client turned to the Chinese market. However, multiple manufacturers only offered standardized products that failed to meet its personalized indicators and working condition requirements. The client subsequently entrusted HiSiaddi with full responsibility for product customization, process debugging and full-cycle implementation.
Customized standards specified by the client: HPAA active component ≥52%, inorganic phosphate ≤0.8%, phosphite ≤1.0%, total heavy metals (lead, cadmium, chromium) ≤3mg/kg. Conventional domestic industrial-grade HPAA only contains 45%~50% active ingredients with excessive impurities, failing to satisfy the usage requirements of high-end equipment and EU environmental screening standards.
The client’s existing formula adopts HPAA compounded with zinc salt corrosion inhibitors. Standard HPAA triggers zinc ion precipitation and system turbidity/stratification, preventing uniform passivation film formation on metal surfaces. The carbon steel pipeline corrosion inhibition rate only reaches 82%, falling short of the client’s internal control standard of ≥95%.
EU regulations mandate a 28-day biodegradation rate of no less than 50% for chemical agents. HPAA produced via conventional processes only achieves around 35% biodegradation, creating environmental compliance risks that prevent full-scale deployment at the Swiss plant.
The plant’s circulating water operates at a constant temperature of 70~85°C. Long-term use of standard HPAA accelerates hydrolysis and gradually weakens scale inhibition capacity, resulting in trace carbonate scale buildup on heat exchanger inner walls and impairing equipment heat exchange precision.
The client requires a maximum deviation of ≤0.3% for all indicators (active content, impurities) across different batches. Most manufacturers adopt intermittent manual feeding production, leading to significant performance fluctuations between batches. Operators must repeatedly adjust on-site dosing ratios, making standardized operation impossible.
HiSiaddi set up a special task force covering R&D, production control, application testing and compliance services. In collaboration with domestic manufacturers capable of high-end fine chemical customization, we delivered full-cycle sample development, testing and mass production within 3 weeks from five dimensions: formula optimization, production process upgrading, compound formulation debugging, quality control system establishment and compliance supporting services.
We selected high-purity synthetic raw materials, optimized reaction ratios and temperatures, and extended thermal holding reaction time to stably raise the product active component to 52.3%, exceeding the client’s requirement. Two-stage filtration and ion exchange purification processes were added to thoroughly remove inorganic phosphate, phosphite and trace metallic impurities. Final test results: phosphate reduced to 0.72%, phosphite to 0.85%, total heavy metals detected at merely 2.1mg/kg, fully meeting all specified standards. Trace eco-friendly stabilizers were added via minor molecular structure adjustments to inhibit hydrolysis under medium-temperature conditions. After 15 consecutive days of operation at 85°C, the retention rate of active ingredients remained above 94%.
Hundreds of compatibility tests were conducted based on the client’s compound system. Special chelating synergistic components were incorporated into finished HPAA to strengthen zinc ion stabilization. After optimization, the product maintains clarity without stratification or precipitation when mixed with zinc salt corrosion inhibitors for long-term storage. A dense protective film forms on metal surfaces, lifting the comprehensive corrosion inhibition rate for carbon steel and copper alloys to 96.2%, fully matching the client’s existing formula system.
Post-synthesis processing procedures were revised to reduce residual hard-to-degrade by-products and optimize molecular structure. Third-party testing in accordance with OECD 301B standards recorded a 28-day biodegradation rate of 58%, successfully passing EU environmental indicator audits.
We coordinated the manufacturer to deploy a fully automatic DCS continuous production line with computerized precise control of temperature, feeding volume and pH, eliminating manual intervention. Exclusive production SOPs were formulated with clear threshold limits for all indicator controls, restricting parameter deviations across batches to within 0.25% and completely eliminating batch performance fluctuations.
An 8kg customized sample batch was produced, accompanied by original factory COA test reports, third-party biodegradation test reports and compound compatibility reports, which were sent to the client’s laboratory for full-item testing with all indicators passing in one go. A dedicated dosing scheme tailored to on-site working conditions was issued, specifying dosing quantity, injection points and water quality monitoring frequency. Storage precautions were also explained to avoid operational risks.
Brand-new sealed HDPE drums were adopted in line with Swiss import standards, fitted with multi-lingual labels printed with product parameters, hazard warnings and traceability codes. A full set of English-language SDS, compliance declarations and test dossiers were compiled to facilitate smooth customs clearance and internal plant audits.
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Customized products fully meet standards with stable performance under operating conditions After the first mass-produced shipment was put into service, scale and corrosion inhibition performance remained consistent throughout long-term operation at 85°C medium temperature. No new scale formed on heat exchangers, pipeline corrosion was fully resolved, and equipment heat exchange precision returned to optimal levels.
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Stable compound system & improved operational efficiency HPAA exhibits excellent compatibility with the original zinc salt corrosion inhibitor formulation, enabling long-term storage of mixed chemical agents without repeated formulation adjustments. Consistent batch performance allows standardized dosing, significantly cutting labor costs for operation and maintenance.
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Zero compliance risks & smooth delivery and customs clearance All products and documentation comply with Swiss SN Standards, EU environmental regulations and transportation codes. All five shipments cleared customs without any compliance objections.
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Deepened cooperative partnership & expanded full-category procurement Highly satisfied with HiSiaddi’s customization capacity, technical support and delivery efficiency, the client fully executed the 22-ton annual order and transferred all procurement of other high-end water treatment chemicals including PBTCA and composite scale & corrosion inhibitors to HiSiaddi. The two parties also jointly developed low-phosphorus eco-friendly compound chemical agents to jointly expand client resources in the European precision manufacturing sector.
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Technical Director of the Client commented: "We originally thought we could only purchase expensive local European products. HiSiaddi accurately captured our customization demands and resolved a full spectrum of challenges including impurities, compound compatibility, environmental compliance and batch control through professional technical expertise, with shorter lead times and higher cost performance. They are a reliable long-term technical partner."
When overseas mid-to-high-end precision manufacturing clients purchase HPAA, they no longer only focus on basic content indicators. High purity with low impurities, compound compatibility, environmental friendliness, working condition stability and batch consistency constitute core evaluation criteria, which standardized industrial products can hardly satisfy.
In this cooperation, HiSiaddi leveraged four core strengths: technical customization capability, integrated production line resources, comprehensive quality control and on-site technical application guidance. Moving beyond simple commodity trading, we delivered tailored products based on client working conditions, regulatory requirements and formula systems to resolve all customization bottlenecks one by one. For overseas mid-to-high-end clients, selecting a foreign trade service provider with integrated R&D customization, on-site technical support and compliance service capabilities enables efficient product customization, cost reduction and efficiency improvement while mitigating quality and compliance risks.
For more customized service inquiries, please contact HiSiaddi customer service.
+86-13120989737 
info@hisiaddi.com 
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