Differences Between Light Stabilizer 770 and 531

As a leading light-stabilizer producer, Tiangang Auxiliary, with years of R&D strength and market insight, provides customers with a series of high-quality products. Among them, light stabilizers 770 and 531 are two of our market-popular products. Although both have significant advantages in function and application, they differ in chemical composition, performance and use scenarios.

First, in terms of chemical composition, the main component of light stabilizer 770 is a phenylalanine derivative, while 531 mainly uses an alanine derivative. Both substances have the ability to absorb UV light, but the phenylalanine derivative has advantages over the alanine derivative in heat resistance, light resistance and color stability. Therefore, light stabilizer 770 is suitable for plastic products with high color-retention requirements, such as cosmetic packaging and medical devices. 531, on the other hand, is suitable for outdoor products with high requirements for color change and UV stability, such as automotive parts and building materials.

In performance, light stabilizer 770 has strong UV absorption, effectively preventing plastic products from fading, yellowing and embrittling due to UV light. At the same time, its excellent heat resistance and light resistance enable plastic products to maintain stable performance during high-temperature processing and daily use. Light stabilizer 531 also performs well in UV absorption, anti-fading and anti-ageing, but is relatively weaker in heat resistance and color stability.

From the perspective of use scenarios, light stabilizer 770 is suitable for plastic products such as polyethylene, polypropylene and PVC, especially products with high color-retention requirements, such as cosmetic packaging and medical devices that need strict control of color change and UV erosion. Light stabilizer 531 is suitable for polycarbonate, polyurethane and other plastic products with high requirements for color change and UV stability, such as automotive parts and building materials.

In summary, Tiangang Auxiliary's light stabilizers 770 and 531 each have their own characteristics in chemical composition, performance and use scenarios. To ensure users can select the appropriate stabilizer according to actual needs, we provide professional technical guidance and formulation support to meet the needs of different application scenarios. We are always committed to developing more high-performance products and providing quality services to our customers.