As a new-type foreign trade service provider driven by both technology transformation and foreign trade services, HiSiaddi has established the "1+2+3+4=1" service system and can supply original factory goods of multiple well-known brands for electronic-grade high-purity MCA. A foreign trade service provider with R&D attributes, HiSiaddi has repeatedly solved customized product demands for electronic-grade high-purity MCA for clients through technological transformation cooperation with manufacturers and precise insight into market demands. The following is a case of HiSiaddi addressing customized demands for electronic-grade high-purity MCA. If you require more customized service support, please contact HiSiaddi customer service.
Client: NanoTech Electronics (Japan) A world-leading manufacturer of high-end electronic packaging materials, ultra-thin FCCL (Flexible Copper Clad Laminate) and new energy battery separator coatings, its products are supplied to top enterprises including Kyocera, Murata Manufacturing and Toyota Battery. The company implements extremely stringent standards including Japan JIS K 7201, UL94 V-0 (0.12mm ultra-thin), high CTI ≥600V, low ionic impurities and zero precipitation. As a technology-oriented mid-to-high-end client that rejects general industrial-grade products, its core demands are nano-scale particle size, ultra-high purity, low metallic impurities and customized crystal forms.
The client is developing a new generation of ultra-thin FCCL for 5G base stations and requires customized electronic-grade high-purity MCA as the core raw material for flame retardant coatings, with the following requirements: purity ≥99.8%, D50=0.5~0.8μm (narrow nano-scale distribution), free melamine ≤50ppm, metallic impurities (Na/Fe/Cu) ≤10ppm, hexagonal flake crystal form and zero volatilization at 300℃. The client previously cooperated with 5 domestic manufacturers, yet all cooperation failed due to insufficient purity, overly coarse particle size, excessive impurities and inability to customize crystal forms. Most manufacturers can only supply industrial-grade (98%) or ordinary high-purity grade (99.5%) products that fail to meet the extreme requirements of electronic grade, putting the client’s R&D progress at risk. The client entrusted HiSiaddi to conduct customized technical docking, process development and mass production implementation.
1. Extreme purity requirements: Ultra-high purity ≥99.8%, far exceeding ordinary high-purity MCA (99.5%); free melamine and cyanuric acid residues must be controlled below 50ppm, which cannot be achieved via conventional processes.
2. Customized nano-scale particle size: D50=0.5~0.8μm with particle size distribution Span ≤0.6 (narrow distribution) and hexagonal flake crystal form. Conventional MCA mostly features particle sizes of 2~10μm with acicular/irregular crystal forms, prone to agglomeration and poor dispersion.
3. Ultra-low metallic impurities: Na/Fe/Cu ≤10ppm to avoid short circuits and electric leakage of electronic components; metallic impurities of general industrial-grade MCA are generally ≥100ppm.
4. Low volatilization at high temperatures: Thermal weight loss ≤0.3% at 300℃ to adapt to the high-temperature lamination process of FCCL; ordinary high-purity MCA has volatilization ≥1% at 300℃.
5. Insufficient manufacturing capacity: Most domestic factories lack customized processes for electronic-grade MCA, nano-scale grinding equipment and ultra-pure water washing systems, and can only mass-produce general products while refusing small-batch customized R&D.
Relying on a high-end flame retardant technical database, strategic cooperative R&D manufacturers and third-party testing resources, HiSiaddi set up a special team consisting of technical engineers, factory R&D staff and quality control personnel, completing formula development, lab tests, pilot tests and mass production within 30 days to fully match the client’s extreme requirements.
Sichuan Xingjinghua Technology, which cooperates with DSM on high-end MCA R&D and specializes in electronic-grade customization, was selected as the exclusive supplier. The factory owns four core capabilities including ultra-pure synthesis, nano-scale jet milling, multi-stage deionized water washing and clean workshops, capable of meeting the extreme indicators of electronic grade.
1. Optimized Ultra-Pure Synthesis Process (Purity ≥99.8%)
· Adjust the molar ratio of melamine to cyanuric acid to 1:1.02, precisely control reaction endpoints to reduce by-products;
· Adopt three rounds of high-temperature washing with deionized water (resistivity ≥18.2MΩ·cm) to remove free monomers and salt impurities;
· Control reaction temperature at 165±2℃ and precisely regulate pH value to 6.8~7.2 to prevent impurity generation.
1. Customized Nano-Scale Particle Size & Crystal Form (D50=0.5~0.8μm, Hexagonal Flake)
· Introduce special crystal form guiding catalysts during synthesis to induce crystal growth into hexagonal flakes, replacing traditional acicular crystal forms;
· Adopt German imported jet mill (5000rpm) combined with precise classifier sorting to stably control D50 at 0.6μm with Span ≤0.55 and no large particle agglomeration.
1. Ultra-Low Metallic Impurity Control (≤10ppm)
· Adopt electronic-grade melamine (metallic impurities ≤5ppm) and high-purity cyanuric acid as raw materials;
· Deploy 316L stainless steel equipment and PTFE-lined pipelines throughout the whole process to prevent precipitation of iron, copper and other metal ions;
· Conduct deep metal removal via ion exchange resin for finished products, and test Na/Fe/Cu for each batch to ensure content ≤8ppm.
1. Low Volatilization Modification at High Temperatures (Thermal Weight Loss ≤0.3% at 300℃)
· Optimize the addition amount of silane coupling agent KH-550 surface modifier to 0.8% to enhance thermal stability;
· Adopt vacuum drying (120℃×8h) to completely remove moisture and low-molecular impurities, achieving stable thermal weight loss of 0.25% at 300℃.
1. Three-Tier Testing System: Each batch undergoes factory self-inspection, HiSiaddi re-inspection and sampling inspection by Japan’s third-party institution JQA, with complete English COA, TGA thermal analysis, particle size distribution, metallic impurity and ion precipitation reports issued.
2. Clean Production: Production and packaging in Class 10,000 clean workshops to avoid dust pollution; packaged with aluminum foil vacuum bags and moisture-proof cartons to prevent moisture absorption and impurity mixing.
3. Compliance Qualifications: Provide REACH registration, RoHS2.0, UL94 V-0 (0.12mm) and JIS K 7201 certification reports to meet market access requirements of Japan and the EU.
1. Successful Lab Tests (7 Days) HiSiaddi provided 3 gradient samples with different particle sizes and crystal forms. After testing, the client selected the hexagonal flake sample with D50=0.6μm, all indicators of which met standards:
· Purity: 99.85%
· Free melamine: 32ppm
· Metallic impurities: Na=6ppm, Fe=4ppm, Cu=2ppm
· Thermal weight loss at 300℃: 0.22%
· Flame retardant rating: UL94 V-0 (0.12mm ultra-thin)
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Pilot Mass Production (15 Days) 50kg pilot production was completed with stable batch performance, no agglomeration or precipitation. The client’s FCCL coating lab test passed, featuring smooth surface without pinholes and uniform flame retardancy, meeting the requirements of 5G base station materials.
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Batch Delivery (30 Days) The first batch of 500kg customized electronic-grade high-purity MCA was delivered smoothly, with complete English test reports and JQA certifications attached to each batch. The client applied the product to mass production of new-generation FCCL, raising the yield rate from 92% to 99.5% with no short circuit, electric leakage or precipitation issues, fully substituting imported high-end MCA at a 25% cost reduction.
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Long-Term Cooperation The client designated HiSiaddi as the exclusive supplier of customized electronic-grade MCA, with monthly procurement volume of 1~2 tons covering three product lines: FCCL, battery separators and high-end connectors. Subsequent customized supporting flame retardants including nano-scale PPY and high-purity MPP were further developed.
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The client’s Technical Director commented: "HiSiaddi is more than a trade partner, but our R&D partner. It helped us overcome global technical barriers in customized electronic-grade MCA, realize import substitution and gain international recognition for China’s high-end materials."
Breaking away from the traditional foreign trade mindset of "selling standard products", HiSiaddi has transformed into a solution provider for high-end material customization. Centered on technical R&D, supply chain integration and extreme quality control, it precisely addresses the extreme demands of mid-to-high-end clients for customization, high purity, nano-scale particle size and low impurities. It not only resolves clients’ R&D bottlenecks but also achieves win-win technical and commercial value, which is the core of winning long-term trust from high-end clients.
The core demands of mid-to-high-end clients for customized electronic-grade MCA are extreme technical performance, stable quality and complete compliance certificates, rather than low prices. Restricted by process, equipment and R&D capacity, most domestic manufacturers fail to meet the extreme indicators of electronic grade, forcing clients to rely on imported products at high costs.
HiSiaddi’s core strength lies in building a one-stop high-end customization service system covering "technical docking - process customization - quality control implementation - compliance support". It precisely matches the stringent requirements of mid-to-high-end clients, helps clients achieve import substitution, cost optimization and technical breakthroughs, and ultimately becomes a deeply bound strategic partner for clients.
If you require more customized service support, please contact HiSiaddi customer service.
+86-13120989737 
info@hisiaddi.com 
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