Company Profile
SINCE 1991 · POLYMER ANTI-AGEING
Making materials last longer
For 35 years Beijing Tiangang Auxiliary has focused on the R&D and production of light stabilizers, UV absorbers, antioxidants and functional masterbatches. Additives are a tiny fraction of any formulation, yet they decide how long a material lasts under UV, sulfur compounds, oxidation and flame-retardant conditions — and this is the whole of Tiangang’s business.
Tiangang in eight numbersAt a Glance
Tiangang’s international footprint: a sales company in Brussels, Belgium, Tiangang Chemicals Europe B.V., and a joint-venture high-end additive plant with Clariant of Switzerland in Cangzhou.
Tiangang’s product portfolio: two directions, one throughlineWhat Tiangang Makes
Tiangang covers general-purpose additives for plastics and coatings, plus formulated packages customised for specific applications. Running through all of it is one theme: polymer anti-ageing — from primary antioxidants to light stabilizers to UV absorbers, a complete formulation picture.
Light stabilizers and UV absorbers for plastics
HALS, benzotriazole UV absorbers and formulated packages covering agricultural film, automotive, appliances, cable, rotomolding, textiles, artificial turf and solar. Tiangang offers established general grades (HS-944, HS-950, HS-770, UV-326~329, UV-P) as well as proprietary IP grades (XT-8, HS-362, HS-625 and others).
Antioxidants
Primary antioxidants, secondary antioxidants and photo-thermal stabilizing components complete the anti-ageing picture. Tiangang positions AO-1010 / AO-1076 / AO-168 / AO-B215 as components within formulated packages, and has also developed its own polymer processing aid AO-427, which solves plate-out and batch color variation caused by poor dispersion.
Light stabilizers for coatings
Weathering systems for industrial, architectural and powder coatings, with control of color shift in the early stage of film formation. The applicable standard is the GB/T 23987 series (xenon-arc for coatings). Tiangang handles this separately from the GB/T 16422 series used for plastics, depending on the customer’s substrate.
Functional masterbatches and specialty chemicals
Masterbatches and formulated systems tailored to the customer’s substrate and process, ready to feed directly, which reduces formulation and process tuning costs. Tiangang’s masterbatch platform (MB0607 series, TGUVFQ2001PE, MB6250/6251, MB570-20PET) is a direct engineering answer to plate-out. The specialty chemicals line covers light stabilizer intermediates and custom synthesis.
| Application area | Typical parts | Key focus |
|---|---|---|
| Agricultural covering materials | Greenhouse film · Mulch film · Non-woven fabric · Woven fabric | Weathering retention, greenhouse cycle |
| Photovoltaic applications | Module encapsulation · Backsheet · Cable · Floats | Long outdoor cycles, weathering of flame-retardant systems |
| Artificial turf | Turf filaments | Weathering and halogen-free flame retardancy |
| Home appliances | Air conditioners · Refrigerators · Washing machines · Small appliances | Color difference and strength after long-term use |
| Automotive | Exterior parts · Interior · Wiring harness · New energy | Outdoor weathering, extraction and migration |
| Rotomolded parts | Water tanks · Playground equipment · Fuel tanks | Weathering and plate-out in thick-wall parts |
| Cable | Sheathing | Outdoor ageing and flame retardancy |
| Textiles | Polypropylene · Spandex · Nylon | Fibre weathering and extraction |
| Coatings and inks | Industrial coatings · Architectural coatings · Powder coatings | Xenon-arc weathering, color difference in the early stage of film formation |
Two sets of standards, handled separately by substrate: light stabilizers for coatings follow the GB/T 23987 series (xenon arc for coatings), while light stabilizers for plastics follow the GB/T 16422 series — different substrates call for different weathering evaluation methods, so the formulation and the validation have to be given separately.
Masterbatches are the direct engineering means of suppressing plate-out: the masterbatch platform (MB0607, TGUVFQ2001PE, MB6250-6251, MB570-20PET) is tailored to the substrate and the process, fed directly, and lowers the cost of debugging.
Tiangang owns the chain from intermediate to finished productFrom Intermediate to Product
Many suppliers in this industry act as traders: they buy, repackage and rebrand, and the technical know-how stays with the original plant. When a quality problem or a formulation upgrade appears, they often cannot respond.Tiangang takes a different route: it holds its own technology from light stabilizer intermediates through to finished formulated packages, with proprietary IP on several grades, 36 valid patents in total of which 32 are granted invention patents. The practical difference is that Tiangang can explain the mechanism behind a customer’s weathering failure instead of simply recommending the next grade.
Proprietary IP · high-MW NOR
XT-8
An N-alkoxy hindered amine with a CAS structure developed in-house, directly addressing the industry’s toughest problem: acid generated by flame retardants consuming HALS.
Weathering in FR systemsapprox. 4,000 hours vs approx. 800 hours for conventional HALS; sulfur resistance 3,000–7,000 ppm; chlorine resistance ≤850 ppm
Proprietary IP · NOP™ patented flame retardant
FR-810A
Built on the international NOP™ patent, so the flame retardant system itself no longer releases acidic by-products.
Flame retardancy + light stability + thermal stabilityin one molecule; suitable for UL94 V-0 flame-retardant PP and PC/PC-ABS
Proprietary IP · polymeric light stabilizer
HS-362
Solves film plate-out and long-term migration at the root; the backbone grade of the whole stabilization system.
Mn>2000; 10% weight-loss onset >350℃
Proprietary IP · polymeric HALS
HS-625
Designed for extraction resistance in films and contact-media applications that are sensitive to extraction.
Winner of a provincial and ministerial Science and Technology Progress Award; inherently non-volatile and extraction resistant
Supporting platform: HS-112 low-molecular-weight liquid NOR; AO-427 polymer processing aid, which solves plate-out and batch-to-batch color variation caused by uneven dispersion; and the masterbatch platform MB0607, TGUVFQ2001PE, MB6250-6251 and MB570-20PET.
Three sites: the physical basis of supply reliabilityThree Production Bases
Additives are used in small amounts, yet they carry the highest supply risk of any component: one interruption can stop an entire customer line.Tiangang operates three sites — Daxing in Beijing, Gu’an in Hebei and Cangzhou Lingang — and can support key grades from more than one location.
| Base | Scale | Role |
|---|---|---|
| Daxing, Beijing | 100 mu / 6.7 hectares | Home of the R&D center and the application technology center, and of the Beijing outdoor exposure base |
| Cangzhou Lingang | 300 mu / 20 hectares | In the national-level chemical park at Cangzhou Lingang (Cangzhou Lingang Economic and Technological Development Zone), with park-level safety and environmental control systems; high-end additive lines built in joint venture with Clariant of Switzerland |
| Gu’an, Hebei | 150 mu / 10 hectares | Tiangang’s main production base, with full DCS automatic process control; the integrated ten-thousand-tonne light stabilizer finished-product and intermediate base (phase one on stream in 2011) |
Tiangang Cangzhou Lingang base — aerial view of production units and pipe racks
R&D and testing: turning experience into deliverable dataR&D and Testing
Tiangang’s R&D team of more than 40 PhDs, master’s graduates and senior engineers covers the full path from bench scale through pilot to commercial production, with long-term cooperation with institutions such as the Chinese Academy of Sciences. The corporate R&D center was recognized as a Beijing Enterprise Technology Center (provincial level) in 2013, and several products have won provincial, ministerial and industry science and technology progress awards.
- Equipment: WOM xenon-arc artificial weathering chamber, QUV ultraviolet ageing chamber, thermal-oxidative ageing oven, high-performance liquid chromatography (HPLC), gas chromatography (GC), UV-Vis spectrophotometer and thermal analysis; these support the quantitative analysis of molecular weight distribution, residues and thermal stability
- Exposure sites: two outdoor exposure bases, in Beijing and Guangzhou, so that the dry-cold northern climate and the hot-humid southern climate corroborate each other
Tiangang cross-checks accelerated test data against real outdoor exposure data
Two exposure sites, Beijing and Guangzhou, cover the dry-cold north and the hot-humid south
Quality, credentials and export complianceQuality
Tiangang operates a full-process quality assurance system to ISO 9001, from raw material and intermediates to finished product. Key indicators are tested and retained batch by batch with full traceability, and a COA ships with every batch. Tiangang was certified to GB/T 19001-2000 / ISO 9001:2000 in January 2004 and completed production safety standardization certification in 2014.
Tiangang’s quality floor: additives are a small dosage, but fluctuation in their indicators directly changes how a customer’s finished product performs outdoors — so Tiangang treats batch consistency as a non-negotiable quality floor. For HS-362, figures such as Mn > 2000 and stability above 350°C after 10% weight loss come from batch-by-batch measurement, not from marketing copy. See Quality Assurance.
Corporate credentials
- National-level high-tech enterprise
- National-level specialized and sophisticated “little giant” enterprise
- Beijing Enterprise Technology Center (provincial level)
Industry standing
- Vice-chairman unit of the China Plastics Processing Industry Association
- Vice-chairman unit of the Agricultural Plastics Products Branch of the China Agricultural Plastics Application Technology Society
- Member of the Ageing Methods Branch of the National Technical Committee for Plastics Standardization
- Member of the Society of the Plastics Industry (SPI), USA
- Participant in the drafting of a number of national and industry standards on ageing
International footprint and compliance
- European sales company: Tiangang Chemicals Europe B.V. (Brussels, Belgium)
- Sino-foreign joint venture: Tianji Clariant Cangzhou with Clariant of Switzerland (50% each)
- Products exported to more than 20 countries and regions
- Fully prepared for EU REACH and fully compliant with RoHS
Two verifiable field casesProven Applications
HS-950 in HDPE floating PV pontoons extends service life from 3–5 years to 10–20 years.The work received the 2023 Ringier Technology Innovation Award. Floating PV pontoons face permanent immersion, sun and salt spray at the same time, and a crack out on the water is extremely hard to repair — one of the harshest weathering environments there is. The case has a third-party award, a clearly defined application and a quantified range: for a materials company that has to answer for service life to asset owners, insurers or investors, a third-party endorsed life figure carries far more weight than any internal test report.
— 2023 Ringier Technology Innovation Award
In greenhouse film field trials with XT-8, mechanical property retention stayed above 50% after 38 months.The normal replacement cycle for agricultural film is 1–3 years, so 38 months spans the full service cycle of most products. The figure therefore has real reference value rather than being an ideal number from accelerated laboratory conditions.
— Tiangang agricultural film field data
Learn more about TiangangExplore
Company at a Glance
A complete view of Tiangang: supplier comparison, flagship products, technical barriers, honors and industry standing. →View
Organization
How R&D, application technology, quality and production connect into one loop. →View
Production Base
Scale and role of the Daxing, Gu’an and Cangzhou Lingang sites. →View
Quality Assurance
ISO 9001 process control, testing equipment, CNAS accreditation and applicable standards. →View
Certifications
National-level recognitions, technology platforms, industry posts and awards, all backed by formal documents. →View
R&D and Innovation
Five in-depth features: industry insight, R&D platform, proprietary technology, hard problems, standards and patents. →View
Need a weathering plan for your substrate?
Tell us your material grade, service environment and target life, and Tiangang’s application technology center will propose additive selection, loading recommendations and a validation plan. Tiangang provides formulation advice, not just a product catalogue.
Contact the Application Technology CenterTel: 400-094-4362 · Email: tiangang@tiangang.com · Address: Daxing District, Beijing
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Certifications
- National High-Tech Enterprise
- Vice Chairman Unit, China Plastics Processing Industry Association (CPPIA)
- Vice Chairman Unit, Agricultural Plastics Branch, China Agricultural Plastics Application Technology Society
- Member, Ageing Methods Subcommittee, National Technical Committee on Plastics (SAC/TC15/CS5)
- Member, Society of the Plastics Industry (SPI), USA
Recommended Products
Products
UV Absorbers
400-094-4362
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- Tiangang-Tinaco BUCT scholarship award ceremony 2021-2022