HiSiaddi is an innovative foreign trade service provider driven by dual engines of technology transformation and foreign trade, with a "1+2+3+4=1" service system and access to original UV 1577 supplies from multiple renowned brands. As a technology R&D-focused foreign trade operator, HiSiaddi has conducted multiple rounds of site visits to UV 1577 manufacturers and developed in-depth objective understanding of different brands, enabling regular brand analysis for clients to identify suitable products. Below is a brand recommendation case.
For additional brand and grade comparative analysis, please contact HiSiaddi customer service.
Purchaser: GER TECHNIK GmbH, headquartered in Stuttgart, Germany. For 32 years, the enterprise has specialized in high-end PC/PMMA optical covers, precision automotive instrument transparent housings, and high-transmittance extruded photovoltaic sheets, supplying Bosch automotive electronics and leading European photovoltaic groups. Its products comply with EU REACH, ISO4892 xenon lamp weather resistance, EU food contact certification, and automotive interior VOC control, with stable annual UV 1577 procurement volume of 52 tons and long-term original sourcing of BASF Tinuvin 1577 high-grade material.
Driven by surging European chemical raw material prices, extended overseas original manufacturer lead times of up to 90 days, and a 35% increase in comprehensive import costs, the client launched a domestic UV 1577 substitution certification project. However, the client’s team has decades of European market experience and zero familiarity with domestic mainstream UV 1577 brands, grade classification, and performance differences. The client independently contacted five leading domestic additive manufacturers for quotation and sample submission: Rianlon, Dysun, Omnistab, Nake, and Liansheng. All manufacturers conduct compliant business operations without malicious competitive denigration but focus solely on highlighting their own product advantages while deliberately avoiding competitor strengths and applicable scenarios, only promoting their full product lines. The client could not horizontally benchmark grades, parameters, and applicable working conditions across brands. Five sample sets exhibited inconsistent physical and chemical indicators, with three distinct defects (sheet yellowing, high-temperature precipitation, crystal spots) emerging during lab trials, incurring EUR 29,000 in trial costs and halting model selection progress. Upon referral by the German Plastics Industry Association, the client fully entrusted HiSiaddi with full-brand horizontal evaluation, grade screening, and targeted matching grade recommendation work.
HiSiaddi assembled a team of additive physical and chemical engineers and polymer application engineers to collect COAs, original manufacturer test data, and samples across three grades (general industrial grade, modified refined grade, optical ultrafine special grade) from Rianlon, Dysun, Omnistab, Nake, and Liansheng. All products were tested against the client’s high-end optical PC + automotive extrusion working conditions (processing temperature 285–300°C, low precipitation, high transmittance, low fogging) to objectively dissect brand pros and cons:
· Available grades: General industrial UV 1577, UV 1577-O optical refined grade
· Advantages: Global supply chain matching European automotive OEMs with complete REACH and automotive IATF16949 certifications; optical grade delivers strict impurity control, superior thermal stability, near-white powder hue suitable for automotive transparent components; robust global after-sales system with consistent mass production quality.
· Drawbacks: General grade features large particle size (D50≈11μm), only applicable to standard modified plastics; premium pricing among domestic brands.
· Available grades: DS-1577 industrial grade, DS-1577HP high-purity heat-resistant grade
· Advantages: HP high-purity grade undergoes deep removal of small-molecule residues with no decomposition under short-term processing at 305°C and outstanding anti-precipitation performance; fully integrated in-house synthesis and purification production lines offering flexible small-batch customization, ideal for high-transmittance photovoltaic sheets.
· Drawbacks: Conventional industrial grade exhibits pale yellow hue, unsuitable for ultra-high-transmittance optical lenses; limited niche European certifications.
· Available grades: OM-1577 standard grade, OM-1577F ultrafine powder grade
· Advantages: Ultrafine F grade airflow crushed to D50≤4μm with excellent dispersion performance and minimal crystal spot formation, moderate cost-performance ratio.
· Drawbacks: Heat resistance ceiling of 292°C; slight volatilization under the client’s 300°C limit extrusion working condition, rendering it unsuitable for high-temperature automotive modified formulations.
· Available grades: Single NK-1577 general grade
· Advantages: Lowest unit pricing, ample mass production capacity for standard PC sheets and general outdoor modified plastics.
· Drawbacks: Elevated impurities and intermediate residues with slight ambient precipitation, failing strict internal control standards for high-end German optical and automotive VOC requirements.
· Available grades: LS-1577 national standard general grade, LS-1577S refined grade
· Advantages: Largest production capacity volume for stable bulk delivery; refined grade delivers favorable cost-performance ratio.
· Drawbacks: Unscaled mass production of ultrafine optical grades; powder particle size fails to meet crystal-spot-free requirements for high-transmittance lenses.
The client operates two core production divisions: ① Precision automotive instrument transparent housings (295–300°C high-temperature extrusion, low fogging, low precipitation, strict VOC controls) ② High-transmittance photovoltaic PC sheets (285°C extrusion, high transmittance, long-term weather resistance, cost control)
HiSiaddi eliminated Nake, Omnistab, and Liansheng due to incompatibility with high-end working conditions, ultimately selecting two mid-to-high-end domestic brands (Rianlon and Fujian Dysun) with three specialized grades precisely matched to each production segment:
1. RIASORB UV1577-O (optical refined grade): Dedicated to precision automotive instrument housings, with chloride impurities ≤3ppm, D50=3.8μm, and thermal weight loss ＜0.3% at 310°C, fully matching high-temperature extrusion and low-fogging VOC indicators.
2. Standard refined RIASORB UV1577: Alternative for small-batch special modified orders.
1. DS-1577HP high-purity heat-resistant grade: Dedicated to high-transmittance photovoltaic PC sheets with deep purification to control small-molecule residues and superior weather resistance performance, priced 12% lower than Rianlon to satisfy the client’s photovoltaic segment cost control and high weather resistance requirements.
Final finalized procurement grades: Rianlon UV1577-O, Rianlon refined UV1577, Dysun DS-1577HP.
1. Lab-scale sample evaluation: HiSiaddi coordinated delivery of 5kg samples of corresponding grades from both brands. The client’s laboratory conducted sheet production trials using its proprietary PC formulation:
o Rianlon 1577-O: Lens samples free of yellowing and crystal spots, no blooming after 15 days sealed storage, xenon lamp aging ΔE=1.71 after 1200 hours (meeting client internal control ≤1.8).
o Dysun DS-1577HP: Photovoltaic sheets achieved transmittance of 95.4%, no carbon fouling at high-temperature die heads, all weather resistance indicators passed inspection.
2. Workshop pilot mass production: 2-ton pilot batch from Rianlon and 3-ton pilot batch from Dysun ran continuously for 12 hours across two client production lines, with full inspection of finished products for optical performance, weather resistance, environmental compliance, and fogging passing German laboratory quality control.
3. Official initial order signing & procurement: The client confirmed an initial 22-ton order, consisting of 9 tons Rianlon 1577-O (automotive materials) and 13 tons Dysun HP grade (photovoltaic materials), with the remaining 30 tons of annual demand incorporated into the full-year framework procurement agreement.
1. Cost Optimization: Comprehensive procurement cost of the two domestic grades decreased by 30% versus original BASF material, with lead times shortened from 90 days to 25–30 days, drastically reducing the client’s capital tied up in raw material inventory.
2. Annual Framework Agreement Signed: Following acceptance of the initial order, a full-year 52-ton annual procurement contract was finalized, scheduled for monthly production and delivery across six batches.
3. Extended Grade Selection for New Products: When developing high-end PET optical film, the client retained HiSiaddi to screen customized modified grades from the two established brands.
4. Brand Empowerment for Upstream Manufacturers: Leveraging certification from this high-end German client, Rianlon and Dysun secured two additional equivalent German plastic end-user orders via HiSiaddi.
1. Domestic UV 1577 manufacturers offer three tiered grades (general, refined, optical ultrafine), with substantial performance gaps between different grades of the same brand. Manufacturers prioritize promoting their own products and avoid objective benchmarking of competitor advantages, creating core information barriers for overseas mid-to-high-end clients sourcing domestic additives independently. Overseas high-end end users lack awareness of domestic additive grade classification, leading to unnecessary sample scrapping and wasted R&D costs during blind sample testing.
2. Core Value of HiSiaddi’s Foreign Trade Services: As an impartial third party, HiSiaddi conducts horizontal full-brand parameter benchmarking and hierarchical grade screening aligned with the client’s end-user working conditions, moving beyond single-manufacturer product sales mindset to rely on additive expertise to accurately categorize grade applicable scenarios and break down information asymmetry barriers.
3. Mid-to-high-end European plastic clients prioritize grade matching over pricing during model selection. Impartial full-brand evaluation services constitute core competitive advantage distinguishing professional foreign trade service providers from single-manufacturer agents.
For additional brand and grade comparative analysis, please contact HiSiaddi customer service.
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