Name: Rianox RIANOX UV-622 Hindered Amine Light Stabilizer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Rianox RIANOX UV-622 Hindered Amine Light Stabilizer

Highly effective long-term photostabilization for polyolefins and engineering plastics under intense UV exposure.
Low volatility and excellent thermal stability, ensuring minimal loss during high-temperature processing (e.g., extrusion, injection molding).
Non-migrating molecular structure provides durable surface protection and prevents blooming or plate-out.
Synergistic compatibility with UV absorbers (e.g., benzotriazoles) and antioxidants for enhanced stabilization systems.
Environmentally compliant formulation—free of heavy metals and restricted substances per REACH and RoHS guidelines.

Typical Applications Of Rianox RIANOX UV-622 Hindered Amine Light Stabilizer

Automotive interior and exterior plastic components (dashboards, trim, bumpers).
Agricultural films and greenhouse covers requiring extended outdoor service life.
Geotextiles and civil engineering membranes exposed to prolonged solar radiation.
Packaging films for UV-sensitive products including agricultural chemicals and pharmaceuticals.
Outdoor furniture, decking, and construction profiles made from polypropylene or HDPE.

Chemical Type	Hindered amine light stabilizer (HALS), tetramethylpiperidine derivative
Product Form	Free-flowing white to off-white granules
Appearance	Uniform granular solid, no visible dust or clumps
Molecular Weight (approx.)	500–600 g/mol
Melting Point	120–130 °C
Primary Applications	Polyolefins (PP, PE), ABS, PS, and thermoplastic elastomers
Key Features	Radical scavenging mechanism, hydrolytic stability, low extractability
Benefits	Extended product lifetime, retained mechanical properties, reduced yellowing and embrittlement

Get in Touch with ERICW

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E-mail: wangxingqiang@ericwchem.com
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15921782326
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China