As a new-type foreign trade service provider driven by dual engines of technology transformation and foreign trade services, HiSiaddi has established a "1+2+3+4=1" service system and can supply UV 944 sourced from multiple well-known original manufacturers.
Endowed with R&D attributes, HiSiaddi has conducted multiple rounds of on-site inspections of UV 944 manufacturers through technological transformation cooperation with factories, accumulating objective and in-depth insights into different brands. We regularly analyze UV 944 manufacturers for clients to help them identify matching products. Below is a brand recommendation case.
For more cross-brand model comparison analysis, please contact HiSiaddi customer service.
Buyer: PLASTICAUTO S.L., Spain, a long-established specialized automotive modified plastics enterprise operating for 32 years on the Iberian Peninsula. Its core products include passenger vehicle exterior PP modified pellets, new energy vehicle bumpers, roof rack plastic raw materials and special materials for outdoor photovoltaic component housings, with fixed component supply to SEAT and Renault Spain vehicle assembly plants. All production lines comply with five major access standards: EU REACH, RoHS2.0, ELV automotive environmental regulations, ISO4892 xenon lamp weathering and DIN50017 humidity-heat aging, positioning it as a mid-to-high-end benchmark manufacturer within Spain’s automotive plastic supply chain.
The enterprise historically sourced original BASF Chimassorb944 light stabilizer with an annual stable procurement volume of 92 tons. Faced with maintenance shutdowns of European local chemical plants, year-on-year surges in imported raw material prices and extended maritime delivery cycles of up to 72 days, vehicle manufacturer production schedules faced mounting pressure. The client therefore launched a tender for domestic UV944 localization substitution, planning to screen 1~2 long-term cooperative domestic high-end suppliers for phased replacement of original imported materials.
Client Limitation: While specializing in downstream modification processing, the client has no familiarity with brand stratification within China’s hindered amine industry, subdivided grades from each manufacturer, and performance gaps between variants. It independently emailed five leading domestic additive manufacturers: Lianlong, Beijing Tianguang, Suqian Liansheng, Shandong Xinyuan and Songwon (China production base), requesting samples and quotations. All five manufacturers operate compliantly without denigrating competitors, yet each prioritizes detailing the strengths of its own products and promotes its off-the-shelf standard grades, avoiding objective commentary on peer advantages and disadvantages. For example, Lianlong only elaborates on strengths of its full RIASORB series without mentioning Tianguang’s narrow-distribution high-grade advantages; Tianguang highlights its low-precipitation pelletized grades without evaluating Liansheng’s cost-effective high-end standard variants; Liansheng prioritizes mass-produced standard grades without addressing compatibility strengths of Songwon’s high-purity refined grades.
The client received 8 sample variants and 5 biased technical briefs from five manufacturers, lacking neutral horizontal comparative data to distinguish three tiers of UV944 grades: standard industrial grade, mid-to-high-end automotive special grade and high-purity refined customized grade. Blind small trials across three batches of mixed-brand raw materials triggered unstable batch weathering performance and bloom during injection molding for partial samples, consuming 40 days of R&D work without locking a matching grade and stalling the procurement project. After referral from the European Additive Industry Association, the client fully authorized foreign trade service provider HiSiaddi as a neutral third-party selection consultant. Drawing on our domestic industrial chain database, we horizontally decompose parameters and application pros & cons of full UV944 series from five major brands to screen 2 mid-to-high-end manufacturers and 3 grades precisely matched to the client’s automotive modification scenario.
HiSiaddi formed a dedicated selection team of synthetic additive engineers, polyolefin application engineers and compliance specialists. We uniformly collected original COA test reports, GPC molecular weight chromatograms and third-party SGS test data from all five manufacturers, and conducted neutral analysis of pros & cons for all full series products aligned with the client’s automotive PP modification working conditions (220~235°C high-temperature twin-screw extrusion, 1500h outdoor xenon lamp weathering, strict control of small-molecule precipitation, low halogens and residues), without favoring any single manufacturer. Complete breakdown of mainstream sold variants from five manufacturers is listed below:
· Standard RIASORB UV944: Mass-produced industrial grade with molecular weight 3000~4800, PDI≈1.55, low-molecular oligomer residue 1500~2000ppm. Strengths: Sufficient mass production capacity, short delivery cycles, basic weathering performance compliant, cost-effective with nationwide warehousing for nearby delivery; suitable for agricultural films and ordinary daily plastic products.
· Weakness: Excessive small-molecule residues carry risks of trace precipitation during high-temperature extrusion, incompatible with the client’s stringent automotive exterior material requirements.
· High-End Custom L-944M: Dedicated refined production line with dual-stage vacuum devolatilization processes, narrow molecular weight range of 3750~4200, PDI≤1.32, oligomer residue ≤10ppm, chloride ions <10ppb, benchmarking original BASF indicators. Strengths: Low precipitation, stable performance under high-temperature extrusion, excellent compatibility with PP substrates, perfectly suited for automotive modification. Weakness: Limited production capacity, orders require 15-day advance scheduling, unit price 18% higher than the brand’s standard grade.
· HiSiaddi-944FD (Pelletized High-End Grade): Closed polymerization + multi-stage devolatilization processes, molecular weight 3800~4300, low-molecular residue ≤13ppm, precisely controlled alkali values, compatible with glass fiber reinforced PP and automotive modified materials. Strengths: Extremely stable batch consistency, ultra-low free monomers, no acid-base neutralization conflicts when compounded with antioxidants.
· Weakness: High minimum order quantity (3 tons minimum), limited off-the-shelf standard inventory.
· HiSiaddi-944 Powder: Standard industrial grade targeted at low-end plastics and artificial grass fiber with loose impurity control standards.
· LS-944A High-End Grade: Produced on dedicated refined production lines with narrow molecular weight distribution, volatile matter ≤0.1%, outstanding long-term weathering resistance. Strengths: Ten-thousand-ton annual high-end dedicated production lines, robust supply capacity for large orders, favorable pricing flexibility for bulk procurement.
· Weakness: Low priority scheduling for small trial orders, delivery delays for shipments under 500kg.
· LS-944 Standard Grade: For agricultural films and low-end injection molding with excessive small-molecule content, failing automotive-grade requirements.
Client core operating conditions: Automotive PP exterior modification, high-temperature extrusion at 230°C, 1500h xenon lamp aging ΔE≤2.0, no bloom precipitation during long-term storage, balanced monthly shipments of 7~8 tons across 12 batches annually, cost reduction target ≥25% while benchmarking original BASF performance. Drawing on horizontal evaluation data of five major brands, HiSiaddi eliminated all low-end Shandong Xinyuan grades and excluded Songwon from bulk procurement due to excessive costs, ultimately finalizing two leading domestic mid-to-high-end manufacturers (Tianjin Lianlong & Beijing Tianguang) with three precisely matched grades split into primary mass production and backup alternative dual schemes:
1. Primary Mass Production Grade: L-944M (Automotive-Specific High-End Refined 944): Core raw material for the client’s annual bulk procurement. Narrow molecular weight and low-residue indicators perfectly match automotive modification requirements, delivering clean die heads without oil seepage during high-temperature extrusion and bloom-free finished products. Nationwide warehousing layout enables spot scheduling for routine 7-ton monthly orders, and exclusive dedicated line capacity is locked after signing annual large orders, delivering a 29.3% unit price reduction versus original BASF products to meet the client’s cost reduction targets.
2. Emergency Backup Grade: Premium Batch RIASORB UV944: Not deployed for routine mass production, reserved exclusively for small-batch supplementary supply during temporary upstream raw material shortages or L-944M capacity constraints. Advance agreements with the manufacturer guarantee strict impurity upper limits for selected premium batches to eliminate risks of mixed low-quality standard grade usage.
Deployed as a secondary supplier for dual supply chain risk diversification, activated during Lianlong production line maintenance or supply fluctuations. HiSiaddi coordinated with Tianguang to reduce the minimum order quantity from the original 3 tons to 1 ton for small trial batches, matching the client’s sporadic monthly supplementary ordering demands. This grade delivers optimal performance for glass fiber reinforced PP formulations used in the client’s bumper production, with superior weathering resistance versus peer domestic grades at equivalent price points.
Elimination Explanation: While Suqian Liansheng LS-944A meets performance standards, slow small-order scheduling fails to align with the client’s monthly sporadic shipment rhythm, temporarily excluded from formal procurement catalogs and filed as a backup supplier for future capacity expansion. All Shandong Xinyuan full series and Songwon standard grades are fully removed from candidate lists due to mismatched performance or cost profiles.
HiSiaddi requested samples of Lianlong L-944M, premium batch RIASORB UV944 and Tianguang HiSiaddi-944FD. All samples were uniformly submitted to CNAS-accredited domestic laboratories for four pre-tests: GPC molecular weight, small-molecule residues, chloride ions and thermogravimetric analysis. After confirming all indicators meet the client’s automotive-grade internal control standards, combined samples were airfreighted to Spain, accompanied by bilingual Chinese-English test reports, comparative specification documents outlining pros & cons of each grade and recommended dosage parameters.
The client retained its original mature BASF PP modification formula (0.35% UV944 dosage) for separate machine testing of three samples:
1. Lianlong L-944M: Clean die heads with no oil seepage during extrusion at 232°C, bloom-free pellets after 30 days of room-temperature storage, color difference ΔE=1.79 after 1500h xenon lamp aging, fully passing vehicle manufacturer acceptance standards and designated primary raw material.
2. Tianguang HiSiaddi-944FD: Optimal performance in glass fiber reinforced PP formulations for bumper production, aging color difference ΔE=1.65, designated secondary supplier.
3. Premium Batch RIASORB UV944: Usable for non-glass-fiber routine PP formulations with no precipitation during short-term low-temperature storage, retained as emergency backup.
All three products passed full preliminary R&D testing at the client’s facility, eliminating performance fluctuations previously encountered when mixing miscellaneous brand raw materials.
The client first placed a 6-ton trial order (4 tons Lianlong L-944M + 2 tons Tianguang HiSiaddi-944FD). HiSiaddi coordinated production scheduling with both manufacturers, processed dangerous goods packaging certificates and commodity inspection customs clearance, and consolidated full-container shipments from Shanghai Port to Valencia Port, Spain. After full incoming inspection and stable mass production upon warehouse receipt, the client formally signed an annual framework procurement agreement for 92 tons total UV944: 75% of annual volume (69 tons) locked for Lianlong L-944M, 25% (23 tons) for Tianguang HiSiaddi-944FD, with sporadic supplementary purchases of premium RIASORB UV944 on demand.
1. Delivered Cost Optimization: Comprehensive average unit price of two primary domestic high-end grades fell by 28.7% versus original BASF products, generating substantial direct annual raw material cost savings for light stabilizer procurement. Delivery cycles were compressed from 72 days to 22~28 days, drastically optimizing the client’s inventory turnover.
2. Upgraded Supply Chain Security: Dual-brand dual-supplier layout fully mitigates single-source supply disruption risks, eliminating time and raw material waste incurred from blind product selection and repeated failed sample testing in the past.
3. Long-Term Value-Added Cooperation: Following completion of the selection project, the client fully entrusts HiSiaddi with neutral brand evaluation for future localization substitution of Antioxidant 1010, 168 and other hindered amine products. The following year, as the client expanded plastic export business targeting South American vehicle manufacturers, new UV944 procurement demand retained the two primary grades finalized in this project.
1. Obvious grade stratification exists within China’s domestic UV944 market: identical product names cover two distinct tiers – low-end standard industrial grade and mid-to-high-end automotive special grade. Constrained by corporate operational logic, all manufacturers only promote their own products and decline objective horizontal benchmarking of peer strengths. Lacking industry information reserves, overseas mid-to-high-end end customers easily fall into a selection trap where all manufacturer samples are marketed as premium options without clear differentiation of compatibility, wasting R&D and procurement costs on blind sample testing.
2. HiSiaddi’s core value as a neutral third-party foreign trade provider lies in breaking free from single-manufacturer interest alignment, analyzing full-dimensional parameters, processes, pros & cons of mainstream domestic brands from the perspective of the client’s downstream end-use application scenarios, and precisely screening grades matching the client’s product positioning from dozens of subdivided variants. We eliminate risks of mass production failures caused by misapplication of low-cost low-end grades, serving as a critical bridge enabling domestic high-end additives to penetrate Europe’s mid-to-high-end automotive supply chains.
3. Procurement logic of mid-to-high-end automotive plastic clients in Europe prioritizes product stability, batch consistency and supply chain controllability, with unit procurement cost as a secondary consideration. Neutral full-brand technical evaluation services deliver far greater value than one-sided product promotion from single manufacturers, constituting the core competitive advantage distinguishing HiSiaddi from ordinary trading companies.
For more cross-brand model comparison analysis, please contact HiSiaddi customer service.
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