R&D Platform and Testing Capabilities

Turning 'empirical formulations' into 'deliverable data' relies not on a smarter mind, but on a complete set of hardware and systems that can be reproduced, verified and traced. This page introduces the composition of Tiangang's R&D platform, and how we actually use it in customer projects.

In the additive industry, the ceiling of service capability is set by testing capability. Without equipment, one can only recommend products by experience; with equipment, one can reproduce the customer's failure scenarios, run out data under accelerated conditions, and produce a third-party-recognized report when disputes arise. This is why Tiangang keeps pressing R&D investment into testing capability.

Xenon-arc, QUV and thermal-oxygen aging chambers form the backbone of Tiangang's artificial accelerated-aging equipment fleet, capable of running multiple parallel tests under different standards. 40+ R&D staff including PhDs, Masters and senior engineers; CNAS-accredited testing center; two outdoor exposure bases in Guangzhou and Beijing; and a Beijing (provincial-level) Enterprise Technology Center, with dozens of domestic and foreign invention patents and participation in the drafting of multiple national and industry standards for material aging.

I. Tiangang's Four-Tier R&D Platform

Tiangang's R&D capability is not a single laboratory, but a clearly divided, interlocked four-tier structure: the ability to discover problems (application technology), the ability to reproduce problems (testing center), the ability to verify solutions (exposure base), and the ability to turn solutions into products (technology center and engineering). The four tiers are not parallel but a closed loop.

Tier 1 - Application Technology: the customer-facing front end

The core function of the Polymer Material Weathering Technology Laboratory is to reproduce the customer's failure. The problems customers describe are often 'chalked,' 'brittle' or 'yellowed,' but the underlying chemical causes may be completely different - the same appearance may hide five mechanisms with completely different solutions. The job of this tier is to translate the phenomenon into a measurable failure mode and hand it to the testing center.

The laboratory is equipped with xenon-arc weathering chambers (WOM), UV aging chambers (QUV), thermal-oxygen aging chambers and other equipment, and can carry out modification and processing experiments on common plastic materials to assist customers in comprehensive, multi-level materials R&D. Tiangang's technical diagnosis checklist: the first five questions Tiangang's technical team always asks on the customer's site are fixed - base-material grade, processing temperature, product thickness, service life, and latitude/climate conditions. Without answers to these five questions, any formulation recommendation is a guess. This is also why Tiangang welcomes customers to come with their working conditions.

Tier 2 - Testing Center: CNAS-accredited third-party capability

Tiangang Auxiliary's testing center is accredited by the China National Accreditation Service for Conformity Assessment (CNAS). The practical value of this accreditation starts with the difference between CMA and CNAS.

What CNAS means for Tiangang: CNAS reports are often directly recognized when handling EU CE certification and US FDA registration, avoiding the cost and lead time of duplicate testing. For downstream customers, this is the most easily quantifiable card during supplier audits - a report bearing the CNAS mark means the data has international mutual-recognition effect, not just figures issued by one company.

Tier 3 - Outdoor Exposure Base: the anchor of real climate

Natural exposure tests take years, which is indeed too slow for a product-iteration rhythm; but it is the most accurate weathering-performance evaluation method generally recognized at present, and cannot be fully replaced by any accelerated test.

To build a standardized data system, Tiangang has set up outdoor exposure test bases in Guangzhou and Beijing. The choice of the two bases is not random: Guangzhou represents the hot-humid, strong-UV southern climate, while Beijing represents the dry-cold, distinct-sunshine-cycle northern climate. The difference in data produced by the same formulation at the two sites itself shows that 'weathering' is never a concept divorced from environment.

Correlating accelerated-test data with real climate is the watershed where weathering-technical capability moves from 'able to run tests' to 'daring to draw conclusions.' This is also why Tiangang does not accept single-value conversions such as '1000 hours = 5 years outdoors' - the long-term data from the two bases is Tiangang's confidence to speak.

Tier 4 - Enterprise Technology Center: from solution to product

Tiangang's Enterprise Technology Center (Polymer Material Weathering Technology Laboratory) has a high-level R&D team of more than 40 people including PhDs, Masters and senior engineers. The center is equipped with various advanced chemical-analysis and instrumental-analysis devices, has obtained a number of national invention patents, has published several books and articles on material aging and anti-aging technology, has participated in the drafting of multiple national standards in the field of material aging, and has been awarded the title of 'Beijing (provincial) Enterprise Technology Center.'

The center also houses the China Light Industry Plastics Products Weathering Engineering Technology Research Center (recognized by the China Light Industry Federation) and the China Plastics Products Weathering Technology Laboratory (recognized by the China Plastics Processing Industry Association). How Tiangang's technology center is organized: the technology center is not just one aging laboratory. It simultaneously undertakes R&D tasks in four directions and delivers results to the customer's production line through three service main lines:

• Four R&D directions - anti-aging formulation design and optimization / service-life evaluation and failure-cause analysis / new polymer-material additive R&D / modern equipment technology
• Three service main lines - forward-looking new-product R&D / customer application-technology research and service / value-added technical service

This is also why the model 'customers come with problems and leave with formulations' can hold.

II. Tiangang's Artificial Accelerated-Aging Equipment and Executed Standards

Tiangang runs xenon-arc (WOM), QUV and damp-heat ageing, with the GB/T 16422 series as the reference standard.

Different artificial accelerated-aging methods have different standards in different industries, each with its own advantages and limitations, and must be selected according to specific needs. Tiangang is equipped with multiple sets of equipment and can execute a variety of standard paths, which is why Tiangang can give horizontal comparative data on the same matter.

Tiangang's standard-switching reminder: the national standard for plastics xenon-arc weathering is the GB/T 16422 series; the GB/T 23987 series is for paints and varnishes (coatings) and the two must not be mixed. Coatings customers should note: GB/T 23987.2-2026 was released in July 2026 and will take effect on February 1, 2027, when the standard version must be switched. Tiangang's technical team tracks such standard changes in advance and completes method alignment before customers switch - a direct benefit of Tiangang's participation in standards work.

On accelerated testing and life conversion: regarding 'how many accelerated hours equal how many outdoor years' - there is no universal conversion factor in the industry. Xenon-arc is an accelerated simulation test suitable for horizontal relative comparison, not for precisely reproducing all environmental factors of real outdoors; the same duration has different aging effects on plastics, coatings and rubber; the year-to-year variation of natural exposure can exceed +/-30%. Tiangang does not use single-value conversion for external statements, but adopts a 'accelerated test + outdoor measurement' dual-track to draw conclusions.

Chemical-analysis and instrumental-analysis capability directly determines the formulation-iteration speed. Tiangang's FTIR, XPS, color-difference meters and GPC equipment allow failure diagnosis to be concluded within a week, rather than waiting months until the customer discovers the problem in actual use.

III. How Tiangang's Technical Service Lands in Projects

Stage 1 is failure diagnosis: FTIR and microscopy separate an additive problem from a resin problem.

Below is a typical project flow, showing how Tiangang's technical service step by step turns a problem the customer 'cannot explain the cause of' into a conclusion with 'data, solution and verification.'

Why Tiangang only gives comparative data: note one principle in stage 4 - what Tiangang gives is a same-condition comparison with the customer's existing formulation, not an absolute value. Because weathering performance highly depends on the customer's base-material grade, processing conditions and use environment, an absolute value divorced from these premises is meaningless. What is meaningful is only 'under the same base material and same conditions, how much better solution A is than solution B.'

IV. Tiangang's Three Bases: From Lab to Stable Delivery

Beijing 100 mu (about 6.7 ×10⁴ m²), Gu'an 150 mu and Cangzhou 300 mu carry the route from lab to stable delivery.

Being able to make a good formulation in the lab does not mean being able to mass-produce it stably. Another competitive dimension in the additive industry is batch consistency and supply reliability - leading enterprises all list 'supply stability' alongside product performance as a core selling point, and that is why. Tiangang answers this with the industrialized capability of its three bases.

Three things Tiangang does to ensure batch consistency

• DCS automated control - fully digital, automated management across the process, reducing inter-batch variation.
• ISO 9001 quality system - full-process control from raw materials and intermediates to finished products.
• Joint-venture technology introduction - a joint plant with Clariant (a world top-50 fine-chemical company) while retaining local rapid-response capability; in 2024 an environmental assessment was approved for a 1,300 t/yr light-stabilizer expansion project.

International layout: Tiangang has set up a European company, Tiangang Chemicals Europe B.V. (Brussels, Belgium), responsible for technology R&D and service and marketing. The concrete meaning for customers: stable performance during large-volume supply, no re-validation when batches change; customers exporting to Europe have a local technical contact, without crossing time zones every time.

Want to discuss your formulation problem?

Tell Tiangang's technical team your base-material grade, processing conditions, service life and environmental conditions, and we will first run a failure diagnosis, then discuss whether the solution is feasible. We can also arrange a laboratory visit and technical exchange.