As a new-type foreign trade service provider driven by both technological transformation and export business, HiSiaddi has built a "1+2+3+4=1" service system and can supply photoinitiator 651 sourced directly from multiple well-known original manufacturers.
Boasting R&D capabilities, HiSiaddi has collaborated with manufacturers on technological transformation and conducted multiple rounds of on-site inspections of photoinitiator 651 manufacturers. It maintains objective and in-depth insights into different brands, and regularly analyzes various manufacturers of photoinitiator 651 for clients to help them select suitable products. Below is a brand recommendation case.
Please contact HiSiaddi customer service for more comparative analysis of brands and models.
Purchaser: GERMANY VISCO UV GmbH, headquartered in Hamburg, Germany. With 22 years of experience in high-end electronic PET optical protective films, UV bonding adhesives for medical devices and transparent coatings for precision instruments, its products supply supporting raw materials to Siemens and Bosch. The company purchases 42 tons of original IGM (formerly BASF) Omnirad 651 annually, representing a typical high-end formula client. Faced with extended lead times and consecutive price hikes from European original suppliers, the client planned localized replacement of 651. It independently contacted five major domestic 651 manufacturers: Strong New Materials, Yangfan New Materials, Jingjiang Hongtai, Fulai De and Youming Chemical for sample testing and selection, yet encountered widespread industry challenges: sales teams from each manufacturer only promoted their own brands, highlighting internal advantages while omitting competitors’ strengths, with no objective horizontal comparison reports of product parameters. Unable to distinguish the three tiers of domestic 651 (standard industrial grade, mid-to-high-end refined grade and electronic high-purity grade), the client received five sets of samples with inconsistent specifications, purity, particle size and residue indicators. Small-batch testing revealed inconsistent dissolution performance, varying yellowing levels and uneven storage stability across samples, stalling product selection for 35 days. The client entrusted HiSiaddi with neutral brand evaluation and model screening services.
Aligned with the client’s high-end formula requirements of low yellowing, high purity, fine particle size and low solvent residue, HiSiaddi sorted out the flagship models, product positioning and pros and cons of the five domestic leading manufacturers one by one, objectively listing the strengths of each brand without disparaging competitors:
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Strong New Materials (Domestic Leading Photoinitiator Manufacturer) Flagship Models: PI-BDK (Standard Industrial Grade 651), PI-BDK-HP (High-purity Refined 651) Advantages: Continuous synthesis production lines deliver exceptional batch stability with purity ranging from 99.2% to 99.8%, large-scale production capacity and stable lead times. The HP grade boasts superior recrystallization technology with excellent impurity control. Shortcomings: High-purity grades carry premium pricing; standard industrial grades feature coarse grains unsuitable for ultra-thin optical coatings.
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Yangfan New Materials (Listed Fine Chemical Enterprise) Flagship Models: SY-BDK (Standard Grade 651), SY-BDK-LV (Low-residue Special 651) Advantages: Industry-leading solvent removal technology; the LV grade achieves outstanding control over methanol/benzene residue and superior yellowing suppression, suitable for medical device compliant formulas. Shortcomings: Limited ultra-fine pulverization production capacity, with coarse particle size in standard models.
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Jingjiang Hongtai Chemical (Established Export-oriented Manufacturer) Flagship Model: HT-BDK (National Standard General Grade 651) Advantages: Cost-effective base grade, well-suited for general inks and wood coatings, with long-term export history to low-end coating markets across Europe and America. Shortcomings: No high-end refined grades available; purity capped at 99.3% with elevated trace colored impurities, failing the client’s optical adhesive low-yellowing requirements.
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Hubei Fulai De Chemical Flagship Model: FLD-BDK (Refined Grade 651) Advantages: Strong R&D capacity for compound modification, capable of minor product indicator adjustments in small batches. Shortcomings: Insufficient mass production capacity, with slightly higher batch fluctuation for bulk orders compared to listed leading manufacturers and unstable lead times for large-volume supply.
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Youming Chemical (Specialized New Auxiliary Enterprise) Flagship Model: YOM-BDK (Ultra-fine Particle Size 651) Advantages: Exclusive low-temperature airflow pulverization technology achieving D50 ≤3.6μm with industry-leading powder dissolution speed. Shortcomings: Restricted refining production capacity for high-purity grades, creating supply pressure for large orders.
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Considering the client’s dual formula systems for optical protective films and medical bonding adhesives, Hongtai’s general grade and Fulai De’s unstable mass-production grades were eliminated. Two domestic mid-to-high-end first-tier brands (Strong New Materials and Yangfan New Materials) and three segmented models were finalized:
Application Scenario: Client’s conventional mass production formula for PET optical protective films Purity ≥99.82%, exceptional batch stability, performance comparable to base-grade original IGM products, balancing cost and stability.
Application Scenario: Client’s UV adhesive formula for medical devices Ultra-low solvent residue ＜45ppm, meeting EU raw material limits for medical use with low precipitation compliant with German LFGB standards.
Application Scenario: Client’s ultra-thin transparent coating dedicated formula Ultra-fine pulverization applied on the high-purity HP base to achieve D50 ≤3.7μm, eliminating white spot dissolution risks after replacement of original imported materials.
1. Small-batch testing across formula systems: HiSiaddi coordinated sample delivery of the three models from the two manufacturers. The client conducted small-scale trials on three formula lines (optical films, medical adhesives, ultra-thin coatings) respectively. No yellowing, precipitation or abnormal curing was observed for each model, with performance nearly identical to original IGM 651.
2. Small-batch pilot procurement: Split orders were placed for pilot production: 12 tons of Strong HP, 8 tons of Yangfan LV and 5 tons of Strong ultra-fine modified grade, totaling 25 tons for phased delivery and full-line mass production.
3. Annual framework agreement finalized: After full compliance of pilot testing, the client confirmed a full-year 42-ton procurement agreement with monthly split production scheduling.
1. Cost optimization: Comprehensive procurement costs of the three domestic models decreased by 26% compared to original imported products, significantly cutting raw material capital occupation.
2. Long-term product selection custody service: The client entrusted HiSiaddi with neutral brand evaluation for all photoinitiator selection during new product R&D, eliminating the need for independent communication with multiple manufacturers.
3. Factory product iteration: Leveraging application data from this German client, Strong and Yangfan optimized parameters of corresponding grades, securing additional orders from two Nordic high-end adhesive enterprises in the Netherlands and Finland via HiSiaddi.
1. Domestic 651 is classified into three tiers: standard industrial grade, mid-to-high-end refined grade and electronic high-purity grade. Constrained by sales orientation, each manufacturer’s sales team only promotes its own products while avoiding discussion of competitors’ strengths. Overseas high-end clients lack industry information reserves and risk selecting low-end general grades independently, resulting in scrapped formulas.
2. Core Value of HiSiaddi: Conduct horizontal inventory of advantages and disadvantages of leading manufacturers from an objective third-party perspective, breaking free from the single-product sales mindset of individual factories, and accurately segment models based on end application scenarios to help clients avoid selection pitfalls.
3. Mid-to-high-end fine chemical procurement by European and American buyers prioritizes the capacity of service providers to deliver objective and neutral product selection analysis, forming the core competitive advantage distinguishing them from individual factory sales representatives and general spot trading merchants.
Please contact HiSiaddi customer service for more comparative analysis of brands and models.
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