Light Stabilizer 770

Product Overview

Light Stabilizer 770 represents a premier class of low molecular weight hindered amine light stabilizers (HALS) engineered to protect polymers from photodegradation and oxidative aging. Unlike traditional UV absorbers that compete for light energy, this advanced stabilizer functions by interrupting the degradation cycle at the radical level. This unique mechanism ensures that its efficacy remains consistent regardless of the material thickness, making it an ideal choice for both thin films and thick structural components.

Designed for high-performance applications, this chemical exhibits exceptional thermal stability and does not absorb visible light spectrum. Consequently, it preserves the original color and clarity of the plastic matrix, a critical requirement for aesthetic and optical applications. Its low toxicity profile and compatibility with a wide range of resins further establish it as a standard choice in modern polymer formulation.

Technical Specifications

Industrial Applications

This stabilizer is particularly suitable for plastics requiring robust light stability and long-term weatherability. It is extensively used in polypropylene (PP), high-density polyethylene (HDPE), and polyurethane (PU) systems. Additionally, it demonstrates excellent performance in engineering plastics such as polystyrene, high impact polystyrene, ABS, SAN, ASA, polyamides, and polyacetals.

Common application sectors include automotive components, agricultural films, packaging materials, and outdoor construction profiles. When used in combination with UV absorbers from the UV326 or UV328 series, it creates a synergistic effect that significantly enhances overall photostability. The recommended dosage typically ranges from 0.2% to 1.0% depending on the specific resin and exposure conditions.

Storage and Handling

Light Stabilizer 770 is classified as non-dangerous goods and exhibits good storage stability under proper conditions. To maintain optimal quality, the product should be stored in a cool, dry, and well-ventilated area. It is crucial to avoid exposure to high temperatures exceeding 30°C and high humidity during transportation and warehousing. Proper sealing is required to prevent moisture absorption and contamination. Packaging is typically available in 25kg cartons or drums to facilitate bulk industrial handling.