As a new-type foreign trade service provider driven by technology transformation and export business, HiSiaddi has established a "1+2+3+4=1" service system and can supply PEDOT:PSS materials sourced directly from multiple well-known original manufacturers. Boasting strong R&D capabilities, HiSiaddi has repeatedly conducted multi-round inspections of PEDOT:PSS manufacturers and developed in-depth objective understanding of different brands, enabling professional brand analysis for clients to select matching products. Below is a brand recommendation case.
Contact HiSiaddi customer service for further cross-brand and cross-model parameter comparison analysis.
MedSens AG, headquartered in the biomedical industrial park of Zurich, Switzerland, is a leading mid-to-high-end enterprise specializing in medical flexible ECG patches and minimally invasive physiological sensing electrodes. It long sourced premium PEDOT:PSS equivalent to Heraeus Clevios from Germany, with an annual procurement volume of 28 tons of high-end conductive dispersion. Faced with surging European raw material prices and extended import lead times of up to 40 days, the enterprise launched a localization substitution project and independently contacted five leading domestic mid-to-high-end PEDOT:PSS manufacturers for quotation and sampling: Nanoupe Electronics, Wuhan Low Dimensional Materials, Suzhou Hengjiu Optoelectronics, Nanjing Advanced New Materials Research Institute and Shanghai Redwan Chemical.
Core Pain Point: Each manufacturer only promoted its flagship grades, refrained from slandering competitors but deliberately omitted rival product advantages and declined to provide horizontal parameter benchmarking:
· Nanoupe prioritized its SP screen printing series, avoiding discussion of drawbacks of its low-viscosity inkjet grades;
· Wuhan Low Dimensional Materials focused on its DW-CP high-conductivity grades without disclosing excessive viscosity incompatible with slot-die coating;
· Suzhou Hengjiu concentrated on hole transport materials for photovoltaic applications, evading inquiries about low-acid medical-grade specifications.
The client’s R&D engineers possessed deep terminal application expertise but lacked a full domestic brand database. Seven samples received from five manufacturers featured scattered parameters with divergent performance priorities. After 3 months of independent screening and 6 sample rounds, all candidates failed to meet standards: either conductivity passed but high acidity corroded medical PI substrates, or low-acid stability was achieved at the cost of out-of-spec sheet resistance, halting production line pilot trials. The enterprise fully entrusted HiSiaddi to leverage industry resources for neutral brand sorting and precise grade selection.
Mandatory Client Usage Requirements (Medical Grade): Low free PSS acidity, three material categories for distinct processes: ① Roll-to-roll slot-die coating for flexible ECG electrodes; ② Inkjet printing for micro-electrode patterning; ③ Screen printing for large-area patch conductive layers. Materials must pass EU ISO10993 biocompatibility and REACH compliance, with dry film transmittance ≥91% and sheet resistance fluctuation ≤5% after 500 h dual 85 damp-heat aging.
Core Grades: SP310 (screen printing dedicated), LS180 (low-viscosity inkjet), W260 (slot-die coating stock solution) Advantages: Spin-off from university research institutes, outstanding damp-heat resistance and coating adhesion across full product lines; adjustable free acid content for medical substrates, with supporting coating process guidance available. Disadvantages: High-conductivity grades feature relatively high viscosity; small-batch sampling unit prices are elevated.
Core Grades: DW-CP01 ultra-high conductivity dispersion, DW-CP02 weather-resistant modified liquid Advantages: Maximum conductivity reaches 1000 S/cm, ideal for low sheet resistance high-end touch panels. Disadvantages: Intrinsic high slurry acidity, non-adjustable viscosity, no dedicated inkjet grades, incompatible with the client’s inkjet process.
Core Grades: FY800 high-conductivity dispersion, FY350 general adjustable stock solution Advantages: Large-scale mass production with stable costs; top-tier hole transport performance for photovoltaic applications. Disadvantages: High free PSS content in standard grades, no mass-produced low-acid medical specifications, mediocre substrate wetting performance.
Core Grades: NJ-700 modified PEDOT:PSS, NJ-220 low-acid stock solution Advantages: Advanced laboratory modification technology with excellent low-acid indicators. Disadvantages: Limited mass production capacity, fluctuating batch stability for large-volume orders, extended delivery lead times.
Core Grades: RD-150 low-viscosity inkjet liquid, RD-500 coating stock solution Advantages: Wide viscosity adjustable range, smooth inkjet printing without nozzle clogging. Disadvantages: Weak damp-heat resistance, excessive resistance drift after dual 85 aging, unsuitable for long-term high-humidity medical applications.
Against the client’s three manufacturing processes and medical compliance standards, HiSiaddi eliminated brands with fatal drawbacks: Wuhan Low Dimensional Materials (excessive acidity), Suzhou Hengjiu (no mass-produced medical grades), Nanjing New Materials Research Institute (unstable mass production), Shanghai Redwan Chemical (substandard damp-heat resistance). Two mid-to-high-end brands and three compatible grades were finalized:
1. Nanoupe W260 (slot-die coating dedicated): Matches the client’s roll-to-roll flexible ECG patch production line. The factory modified the formula per HiSiaddi’s parameters to reduce free acid, delivering 91.8% transmittance and only 3.9% resistance fluctuation under dual 85 damp-heat aging, suitable for long-term use on medical PI substrates.
2. Nanoupe LS180 (low-viscosity inkjet grade): Designed for precision inkjet printing of miniature sensing electrodes; low viscosity eliminates nozzle clogging and requires no secondary dilution upon opening.
3. Custom modified Suzhou Hengjiu FY350 grade: Suzhou Hengjiu optimized its standard FY350 formula per HiSiaddi’s parameters to reduce free sulfonic acid groups, serving as the base material for large-area screen printing patches with optimal cost-performance and biosafety for mass bulk supply.
1. Small-batch sample validation: HiSiaddi coordinated 10 kg trial samples from each of the two manufacturers, which were uniformly submitted to EU third-party laboratories for biocompatibility and REACH testing. All three grades passed full pilot trials at the client’s Swiss laboratory in a single round, with yield matching original Heraeus imported materials across all three production lines.
2. Phased bulk procurement launch: The client terminated sampling cooperation with the remaining three manufacturers and split its full-year 28-ton order: 17 tons combined for the two Nanoupe grades, 11 tons for modified Suzhou Hengjiu FY350, delivered in monthly batches over 12 months. HiSiaddi unifiedly coordinated SDS preparation, customs declaration and all compliance documentation. The overall localized procurement cost decreased by 33% versus original imports.
3. Extended long-term cooperation: The following year, the Swiss client entrusted HiSiaddi again with brand selection and sample coordination for new low-impedance PEDOT:PSS dedicated to wearable blood glucose sensors, and simultaneously referred leading Austrian industry peers for procurement cooperation.
Domestic PEDOT:PSS manufacturers feature highly differentiated technical routes and prioritize promotion of their own products. For commercial protection, they will not objectively disclose competitors’ strengths. Mid-to-high-end overseas terminal clients lack a comprehensive domestic material database and easily make flawed selection decisions relying solely on one-sided manufacturer introductions, wasting significant R&D costs on repeated sampling.
Leveraging a full-spectrum domestic raw material database, HiSiaddi breaks free from single-manufacturer interest binding and delivers neutral horizontal evaluation centered on the client’s terminal processes and compliance standards. It objectively dissects strengths and weaknesses of each brand, drastically compressing trial-and-error sampling cycles, and enables mid-to-high-end overseas clients to source optimal matching domestic raw materials at minimized costs, establishing itself as the client’s fixed material selection service provider.
Contact HiSiaddi customer service for further cross-brand and cross-model parameter comparison analysis.
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