As a new-type foreign trade service provider driven by both technology commercialization and foreign trade business, HiSiaddi has built a service system of "1+2+3+4=1" and can supply original products from many well-known manufacturers of bisphenol A dicyanate ester.
Endowed with R&D capabilities, HiSiaddi has conducted multiple rounds of on-site inspections of bisphenol A dicyanate ester manufacturers through technology transformation cooperation with factories, developing objective and in-depth insights into different brands. The company regularly analyzes various manufacturers of bisphenol A dicyanate ester for clients to help identify suitable products. Below is a brand recommendation case.
Please contact HiSiaddi customer service for more cross-brand and cross-model comparative analysis.
The buyer, RF Composites SAS based in Lyon, France, is a leading European manufacturer of mid-to-high-end RF communication substrates, producing 5G base station RF boards, satellite navigation high-frequency copper-clad laminates and military radar insulating boards. Its products compete with original bisphenol A dicyanate ester (BADCy) from Switzerland’s Lonza and Japan’s Mitsubishi, with an annual rigid demand of 90 tons of high-grade BADCy sourced from overseas high-purity cyanate ester monomers. Raw material access complies with EU REACH and aerospace AS9100D quality specifications, with mandatory indicators: monomer purity ≥99.6%, free bisphenol A ≤30ppm, moisture content <90ppm, post-curing dielectric loss ≤0.0035, rejecting standard industrial-grade raw materials.
Amid price hikes for original European and US raw materials and extended sea transit cycles of up to 75 days, the client launched a local Chinese raw material screening program. The client initially shortlisted five leading domestic BADCy manufacturers: Shandong Shengquan, Jiangsu Yangnong, Guangdong Shengyi, Guangzhou Taiji and Zhejiang Wansheng, collecting samples, parameter sheets and quotations through one-on-one outreach but encountering a widespread industry pain point: all manufacturer sales teams only highlight their own product strengths, avoid objective discussion of peer advantages and disadvantages, and unilaterally push their flagship grades.
· Shengquan sales staff only introduced the merits of its high-purity grade, ignoring Yangnong’s prepreg compatibility and Shengyi’s low-dielectric strengths;
· Yangnong focused on promoting heat resistance of its aerospace-grade products, evading Wansheng’s advantages in low free phenol refining and Taiji’s flexibility for small-batch customization.
The client accumulated samples, technical data and quotations from five manufacturers yet lacked horizontal comparative insight to distinguish grade suitability for its RF board formulations. Blind trial production triggered recurring defects: foaming of boards due to excessively fast curing for some grades, excessive dielectric loss for others, and high-temperature storage caking for individual products, resulting in seven failed lab machine trials and stalled material selection. Upon recommendation by the French Chemical Industry Chamber of Commerce, the client fully entrusted HiSiaddi to conduct horizontal professional evaluation and grade screening across all brands.
Drawing on its cyanate ester raw material database and downstream copper-clad laminate application experience, HiSiaddi conducted on-site sampling at all five manufacturers and third-party CNAS laboratory testing to deliver objective analysis of each brand’s core strengths, weaknesses, flagship grades and applicable scenarios beyond biased manufacturer marketing materials, compiling a complete benchmarking report:
1. Shandong Shengquan (Largest domestic market share, continuous large-scale production lines) Flagship grades: SQ-997 High-Purity Grade, SQ-995 Premium General Grade
o Strengths: Vertically integrated full industrial chain, extremely stable monomer purity with minimal batch-to-batch deviation, sufficient mass production capacity, excellent heat resistance with Tg up to 262℃, suitable for mass standardized copper-clad laminate manufacturing;
o Weaknesses: High curing activity leaving low formulation adjustment tolerance, high price premiums and long scheduling lead times for small-batch customized indicator modifications;
o Applicable scenarios: Mass-produced standard military substrates, high-temperature resistant structural composite materials.
2. Jiangsu Yangnong (Segment leader in aerospace prepregs) Flagship grades: YN-A Aerospace Refined Grade, YN-B General Electronic Grade
o Strengths: Mature cyanate ester modification technology, outstanding impregnation fluidity for prepregs, excellent compatibility with epoxy blending, long-term supplier to domestic aerospace research institutes, superior stability under high temperature and humidity;
o Weaknesses: Mid-tier free phenol control, premium pricing for YN-A, scarce specialized low-dielectric grades;
o Applicable scenarios: Aerospace prepregs, thick special insulating panels.
3. Guangdong Shengyi (Specialized manufacturer of high-frequency copper-clad laminates) Flagship grades: SY-LD Low-Dielectric Special Grade, SY-H Standard High-Purity Grade
o Strengths: In-depth R&D into high-frequency PCB substrates; the SY-LD grade adopts optimized molecular refining processes delivering industry-leading domestic dielectric loss and superior filler compatibility, ideal for 5G RF boards (the client’s core product line);
o Weaknesses: Smaller mass production scale than Shengquan, delayed delivery during peak seasons for large orders, slightly lower heat resistance ceiling than Yangnong;
o Applicable scenarios: High-frequency high-speed PCBs, 5G RF copper-clad laminates (the client’s core production category).
4. Guangzhou Taiji New Materials (Specialist in small-batch refined customization) Flagship grades: TJ-998 Ultra-High-Purity Custom Grade, TJ-996 Premium Industrial Grade
o Strengths: Industry-leading free phenol refining technology, TJ-998 achieves free phenol levels below 20ppm, flexible pilot production lines with flexible small-batch formulation adjustments and low minimum order thresholds;
o Weaknesses: Insufficient ten-thousand-ton mass production capacity creating batch delivery pressure for 90-ton large orders, unit pricing higher than Shengquan and Shengyi;
o Applicable scenarios: Small-batch high-end special electronics, lab customized raw materials.
5. Zhejiang Wansheng (Low-impurity refining route specialist) Flagship grades: WS-P Refined Monomer, WS-G Modified General Monomer
o Strengths: Unique raw material purification process delivering excellent moisture content control, products resist caking under ambient storage with superior warehousing stability;
o Weaknesses: No specialized low-dielectric modified grades, mediocre performance for high-frequency RF boards;
o Applicable scenarios: Standard high-end electronic encapsulation, general epoxy modification feedstock.
The client operates dual product lines: 5G RF copper-clad laminates (65 tons of annual demand) plus small-volume military radar substrates (25 tons of annual demand), with total annual procurement of 90 tons split into multiple shipments. HiSiaddi eliminated Yangnong (low-dielectric performance deficiency), Taiji (insufficient large-order capacity) and Wansheng (lack of low-dielectric grades), ultimately shortlisting two domestic mid-to-high-end brands: Guangdong Shengyi and Shandong Shengquan, with three precisely matched grades:
1. SY-LD Low-Dielectric Special BADCy (65 tons annual core procurement): Optimized for the client’s 5G RF copper-clad laminates, fully meeting the client’s internal control standard of dielectric loss ≤0.0035 with excellent filler dispersibility, resolving prior dielectric excess failures during trial production.
2. SY-H High-Purity Base Grade (Backup supplementary stock): Used for small-batch new product trials with moderate cost performance, serving as temporary replenishment alternative for SY-LD.
1. SQ-997 Aerospace High-Purity Grade (25 tons dedicated for military radar substrates): Outstanding heat resistance and exceptional batch stability compatible with the client’s high-temperature military board molding process, eliminating prior board warpage and uneven curing defects observed in trial samples.
HiSiaddi coordinated free supply of 5kg samples for each of the three selected grades from both manufacturers, shipped uniformly to the client’s French laboratory for full physical, chemical, dielectric and humidity aging testing:
1. Mass production RF boards manufactured with Shengyi SY-LD exhibited stable dielectric constants ranging from 2.78~2.81 and dielectric loss of 0.0032, fully compliant with specifications;
2. Military radar substrates fabricated with Shengquan SQ-997 showed no warpage or voids after 168-hour accelerated humidity aging, with free phenol content of 27ppm satisfying EU military raw material acceptance criteria.
Following full compliance testing, the client finalized a 90-ton annual framework procurement contract: 65 tons of Shengyi SY-LD delivered monthly in six batches, and 25 tons of Shengquan SQ-997 shipped quarterly in three installments. HiSiaddi additionally provided EU REACH registration documents, bilingual SDS and third-party factory inspection reports, supporting hazardous goods export customs clearance and shipment via China-Europe Railway Express.
The first batch of 18 tons of raw materials arrived at the client’s factory for production, lifting board yield from 62% during prior trial sampling to 99.4%. Compared with original Swiss imported raw materials, overall procurement costs dropped by 29% and delivery lead times were compressed from 75 days to 22 days. In the subsequent year, the client launched a new automotive millimeter-wave radar substrate product line. Drawing on this material selection experience, HiSiaddi coordinated Shengyi to fine-tune modified formulations for an updated SY-LD grade, securing an additional annual procurement order of 42 tons.
Sales teams at leading domestic BADCy manufacturers operate under sales-oriented mandates, only promoting their own products while avoiding objective discussion of peer strengths – a prevalent industry norm. Overseas mid-to-high-end end users lack familiarity with segmented domestic grade differences and easily make poor material selections relying solely on biased manufacturer marketing materials. As a neutral third-party service provider, HiSiaddi conducts horizontal cross-industry benchmarking of core strengths and weaknesses across all leading domestic brands, narrowing down brand and grade options tightly aligned with clients’ end-product formulations and positioning. The service avoids unnecessary trial production costs for clients and facilitates entry of high-quality domestic mid-to-high-end BADCy products into Europe’s high-end RF new material supply chains.
Please contact HiSiaddi customer service for more cross-brand and cross-model comparative analysis.
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