About Tiangang® | Polymer Anti-Aging Solutions Since 1991
SEO Meta Title:`About Tiangang® | Polymer Anti-Aging & Light Stabilizer Solutions` （58 characters — within 60 limit）
SEO Meta Description:`Tiangang® is a leading specialty chemical company producing light stabilizers, UV absorbers & polymer anti-aging solutions. 30,000+ MT capacity, 3 plants, ISO 9001 certified.` （158 characters — within 160 limit）
Who We Are
Beijing Tiangang Auxiliary Co., Ltd. is a specialty chemical company headquartered in Beijing, China, with a singular focus on polymer anti-aging technology. We develop, manufacture, and distribute a comprehensive portfolio of light stabilizers, UV absorbers, synergistic blends, antioxidants, and functional masterbatches — all designed to protect polymers from degradation caused by UV radiation, heat oxidation, and environmental stress.Our customers operate in some of the most demanding industries in the world: agricultural film producers extending greenhouse cover lifespans; automotive Tier 1 suppliers ensuring interior and exterior components retain color and mechanical integrity; coating formulators delivering long-term gloss retention; and packaging manufacturers meeting stringent durability requirements. In each case, Tiangang products are selected because they deliver measurable performance advantages backed by rigorous technical validation.
Beyond finished light stabilizers and UV absorbers, we also produce a comprehensive range of antioxidants and fine chemicals/intermediates that serve as building blocks for our own backward-integrated manufacturing and as standalone products for chemical industry customers. This vertical integration capability not only enhances supply chain resilience but also enables us to control critical quality parameters from raw material source to finished additive — a level of oversight that distinguishes Tiangang from traders and purely toll-manufacturing operations.
We do not simply sell chemicals. We deliver polymer anti-aging solutions that are validated through accelerated weathering tests, natural exposure trials, and real-world application feedback. Our technical team works directly with customer R&D and procurement functions to optimize formulations, troubleshoot field failures, and design custom additive packages that meet specific regulatory and performance criteria. This collaborative approach — combining deep additive chemistry knowledge with practical polymer processing experience — is what transforms a supplier relationship into a technical partnership.
Integrated Product Portfolio
Tiangang's product range spans the full spectrum of polymer anti-aging chemistries. Our portfolio is organized around five core categories, each engineered to address specific degradation mechanisms and application requirements.
Hindered Amine Light Stabilizers (HALS)
Our HALS portfolio is the cornerstone of Tiangang's technical reputation. These products scavenge free radicals generated by UV exposure, interrupting the photo-oxidative degradation cascade that causes polymers to embrittle, discolor, and lose mechanical properties. Key commercial grades include Tiangang® HS-944, BW-10LD/622, HS-770, HS-950, HS-200/2020, HS-300, and HS-625, among others. These products serve applications ranging from greenhouse films and agricultural mulch to automotive interiors and exterior body panels.
UV Absorbers
UV absorbers function by preferentially absorbing UV radiation and dissipating it as harmless thermal energy. Tiangang manufactures a broad range of benzotriazole, triazine, and benzophenone-type UV absorbers under the Tiangang® brand, including UV-326, UV-327, UV-328, UV-329, UV-360, UV-234, UV-570, UV-630, UV-237, UV-531, and UV-P. These products are widely used in coatings, transparent plastics, polycarbonate sheets, and high-performance fibers where color stability and transparency retention are paramount.
Synergistic & Custom Blends
Modern polymer formulations often require multi-component stabilization systems. Tiangang offers pre-optimized synergistic blends such as T-66, T-68, T-69, T-70, T-78, T-81, HS-6608, HS-962/783, HS-362, and C102 that combine HALS, UV absorbers, and antioxidants in ratios designed to deliver enhanced performance with simplified handling and dosing. Our technical team can also develop custom formulations for customers with proprietary substrate systems or unique regulatory requirements.
Low Molecular Weight Light Stabilizers
For applications requiring high mobility and rapid dispersion — such as thin films, coatings, and fiber spin finishes — we offer low molecular weight grades including HS-112, HS-765, and HS-770. These products provide effective stabilization at lower use levels and are particularly valued in coating and fiber applications where surface protection is critical.
Coatings-Specific Stabilizers & Functional Masterbatches
Tiangang also produces a dedicated range of light stabilizers optimized for solvent-based, water-based, and powder coating systems. Our coatings stabilizers are selected for their compatibility with diverse resin systems, low volatility under baking conditions, and minimal impact on coating optical properties. In addition, our functional masterbatches concentrate active stabilizers into polymer carrier systems, simplifying dosing accuracy and improving dispersion in large-volume extrusion operations.
Antioxidants & Specialty Chemicals
To complement our UV stabilization portfolio, we manufacture antioxidants that interrupt thermal oxidation pathways — the other primary degradation mechanism affecting polymers during processing and long-term heat exposure. These products are essential co-stabilizers in most practical formulations, working synergistically with HALS and UV absorbers to provide comprehensive protection. We also supply high-purity fine chemicals and intermediates to the broader specialty chemical industry, leveraging our backward-integrated synthesis capabilities and rigorous purification expertise.
The breadth of our portfolio means that customers can source their complete polymer anti-aging requirements from a single, qualified supplier — reducing qualification burden, simplifying logistics, and ensuring formulation compatibility across product families. From greenhouse films in tropical climates to automotive clearcoats in desert environments, from marine-grade coatings to consumer electronics housings, Tiangang additives are working silently — in small dosage, with decisive effect — to extend product service life and protect our customers' brand reputations.
Quality Assurance & Global Compliance
For international buyers of specialty chemicals, quality assurance is non-negotiable. Tiangang has implemented a comprehensive quality management system that addresses every stage of the product lifecycle — from raw material qualification and in-process control to finished product release and post-market traceability.
Quality Management System
- ISO 9001 Certification — Our quality management system is certified to ISO 9001, ensuring that documented procedures govern all critical processes including procurement, production, testing, and customer complaint handling. - DCS Automation — All major production lines operate under fully automated Distributed Control Systems. This eliminates human variability in critical process parameters, ensures real-time alarm response, and generates complete electronic batch records for regulatory audits. - Advanced Analytical Infrastructure — Our laboratories are equipped with HPLC, GC, UV-Vis spectrophotometers, melt flow indexers, and accelerated weathering instruments. Raw materials, in-process samples, and finished goods are tested against statistically validated specifications before release.Regulatory & Compliance Commitments
International customers require confidence that their suppliers meet applicable chemical safety and environmental regulations. Tiangang maintains active compliance programs aligned with major global regulatory frameworks, reflecting our understanding that international chemical trade depends on transparent documentation and predictable regulatory status:
- REACH (EU) — We support EU-registered substances and provide Safety Data Sheets (SDS) and technical documentation required for downstream communication. Our regulatory team monitors REACH Annex XIV and SVHC candidate list updates to ensure continued compliance. - RoHS / REACH SVHC — Our products are formulated to avoid restricted substances, and we monitor the REACH SVHC candidate list to ensure continued compliance. - FDA / EU Food Contact — Select grades meet applicable requirements for food-contact polymer applications, supported by extraction and migration test data where required. - TSCA (US) — Substances are managed in accordance with US Toxic Substances Control Act requirements for chemical importers and manufacturers.Our regulatory affairs team works proactively with customers to provide certificates of analysis, origin documentation, third-party test reports, and customized compliance declarations. This responsive documentation support is a critical element of our value proposition for global customers who operate under stringent procurement and audit requirements.
Industry Leadership & Recognition
Over three decades of focused effort, Tiangang has earned recognition from government agencies, industry bodies, and technical media for contributions to polymer additive technology and responsible business practices.
- National High-Tech Enterprise — Recognized by Chinese national authorities for sustained innovation capability and R&D investment intensity. - Specialized, Refined, Distinctive, Innovative "Little Giant" Enterprise — A national designation awarded to mid-sized companies that demonstrate leadership in niche technology sectors and possess strong competitive advantages. - First Prize, National Ministry of Education Science and Technology Progress Award — Recognizing our significant technical innovation contributions in the polymer additive field. - Ringier Technology Innovation Award — An industry media award acknowledging Tiangang's product innovation and technology development achievements. - Top 100 Beijing Private Enterprises in Social Responsibility — Recognizing our commitment to green manufacturing, employee welfare, and community contribution.These honors are not endpoints. They represent milestones in a continuous journey of improvement — in product quality, technical capability, environmental stewardship, and customer service.
Partner With Tiangang
Across the industries we serve — plastics, coatings, rubber, fibers, and advanced materials — a common thread unites our customers: they need their products to perform reliably for years, often in unforgiving environments. Whether you are a procurement professional evaluating a new light stabilizer supplier, a technical engineer seeking formulation optimization support, or a product manager exploring polymer anti-aging solutions for a new application, Tiangang offers a partnership model built on technical depth, quality assurance, and global responsiveness.
Our technical service process is straightforward and customer-focused. It begins with understanding your substrate system, end-use environment, and performance targets. We then recommend appropriate standard or customized additive solutions, supported by accelerated weathering data and, where beneficial, natural exposure validation. For complex challenges, our R&D team can develop bespoke chemistries or co-stabilizer packages designed specifically for your process conditions and regulatory requirements.
We invite you to explore our product portfolio, request technical documentation, or arrange a consultation with our application engineering team. Our laboratories are available to conduct joint weathering studies, failure analyses, and formulation development projects tailored to your specific substrates and performance requirements. With over thirty years of experience in polymer anti-aging, a multi-site manufacturing infrastructure, and a European service center ready to support your regional needs, Tiangang is equipped to be more than a supplier — we are prepared to be your long-term technical partner in material durability.
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