In the pursuit of durable and aesthetically pleasing polymer products, protection against ultraviolet (UV) radiation is paramount. UV-328, a high-performance UV absorber, offers exceptional protection for a wide array of plastics and organic materials. NINGBO INNO PHARMCHEM CO.,LTD., as a dedicated manufacturer and supplier, is at the forefront of providing this essential chemical additive to industries worldwide.
Understanding UV-328: Chemistry and Performance
UV-328, identified by its CAS number 25973-55-1, is a benzotriazole-type UV absorber renowned for its ability to efficiently absorb UV light in the 270-340 nm range. This absorption capability effectively shields polymers from photodegradation, a process that can compromise material integrity, leading to discoloration, embrittlement, and loss of mechanical properties. As a chemical manufacturer, we highlight UV-328's key advantages: its superior compatibility with various polymer resins, its low thermal evaporation—crucial for high-temperature processing—and its excellent wash resistance, ensuring sustained protection.
Applications of UV-328 Across Industries
The versatility of UV-328 makes it an indispensable additive for a multitude of applications. Procurement managers and product formulators rely on it for:
NINGBO INNO PHARMCHEM CO.,LTD. is a trusted UV-328 supplier, committed to providing high-purity (≥99% HPLC) product that meets the stringent demands of these applications.
Why Choose NINGBO INNO PHARMCHEM CO.,LTD. for Your UV-328 Needs?
When you need to buy UV-328, NINGBO INNO PHARMCHEM CO.,LTD. stands out as a reliable manufacturer and supplier. We offer competitive UV-328 prices, backed by our commitment to quality and consistent supply. Our ability to deliver a product with low volatile content and high wash resistance ensures that your materials maintain their performance and appearance over time. We encourage B2B clients to explore our offerings, understand the product specifications (yellowish powder, melting point 79-87°C), and consult with our technical team for recommended dosages, typically between 0.1% and 0.5%.
Investing in UV-328 from NINGBO INNO PHARMCHEM CO.,LTD. means investing in the enhanced durability and quality of your polymer products. Contact us today to secure your supply and obtain a quote for this essential UV stabilizer.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.