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The rapid development of the automotive and transportation industry has led to increasingly stringent requirements for anti-aging performance.

As automotive lightweighting continues to advance, an increasing number of interior and exterior components are being manufactured from polymer materials. This not only reduces energy consumption but also enhances the aesthetic appeal of vehicles. However, polymer materials are highly susceptible to photo-thermal degradation when exposed to environmental factors such as light, heat, moisture, and oxygen, which can lead to appearance defects or functional failure.

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Shanghai Yichen provides one-stop solutions and products for a wide range of applications.

Automotive Exterior
Automotive Interior
Engine, Motor, and Battery Systems

Automotive Exteriors

Automotive exterior parts include front and rear bumpers, ventilation covers, trim panels, sill plates, water channels, lamp housings, etc. The main materials used for automotive exterior parts include PP, ABS, PC, PA6, PA66, POM, TPV, PET, PMMA, etc.
- Paint Protection Film
  
  Specialized Anti-Aging Solution for Paint Protection Film (U-pack^® UV7188/UV7175/B7160)
  
  Provides long-lasting weather resistance, ensuring the paint protection film does not yellow or fade under natural conditions, maintaining excellent gloss.
- Lighting Components
  
  Long-lasting Anti-Aging Solution for Lighting Components
  
  RIASORB^® UV-360, RIASORB^® UV-329, RIANOX^®1076, RIANOX^®168, etc., provide excellent UV durability, heat resistance, and antioxidant performance for the material, ensuring stable color, gloss, and light transmittance of lighting components after long-term use.
- Wheel Arch Liners
  
  Comprehensive Anti-Aging Solution for Exterior Parts (U-pack^® UV-7303/UV-7308/UV-703/B7327)
  
  Provides exterior parts with excellent heat resistance, UV resistance, color protection, and gloss retention, with no migration, low odor, and no impact on paint adhesion.
- Bumpers, Front Shields, etc.
  
  Comprehensive Anti-Aging Solution for Exterior Parts (U-pack^® UV-7303/UV-7308/UV-703/B7327)
  
  Provides exterior parts with excellent heat resistance, UV resistance, color protection, and gloss retention, with no migration, low odor, and no impact on paint adhesion.
- PVB Interlayer Film for Glass
  
  PVB Interlayer Film Protection Solution
  
  U-pack^® UV-5613, RIASORB^® UV-109, RIASORB^® UV-326, RIANOX^®1010, etc., impart excellent weatherability and antioxidant performance to the material, ensuring long-lasting high light transmittance.
- Window Glass Adhesive
  
  Anti-Aging Solution for Window Glass Adhesives
  
  Provides excellent heat resistance, antioxidant performance, and weatherability, resisting adhesive hardening and cracking to ensure long-lasting durability.
- Topcoat
  
  Optimal Weatherability^® Solution for Automotive Paint
  
  Provides excellent weatherability, ensuring the topcoat does not fade, blister, or crack under natural conditions, maintaining long-lasting gloss.
- Lightfastness
- Heat Resistance
- Discoloration Prevention
- Degradation Prevention
Request Application Solution
- Paint Protection Film
  
  Specialized Anti-Aging Solution for Paint Protection Film (U-pack^® UV7188/UV7175/B7160)
  
  Provides long-lasting weather resistance, ensuring the paint protection film does not yellow or fade under natural conditions, maintaining excellent gloss.
- Lighting Components
  
  Long-lasting Anti-Aging Solution for Lighting Components
  
  RIASORB^® UV-360, RIASORB^® UV-329, RIANOX^®1076, RIANOX^®168, etc., provide excellent UV durability, heat resistance, and antioxidant performance for the material, ensuring stable color, gloss, and light transmittance of lighting components after long-term use.
- Wheel Arch Liners
  
  Comprehensive Anti-Aging Solution for Exterior Parts (U-pack^® UV-7303/UV-7308/UV-703/B7327)
  
  Provides exterior parts with excellent heat resistance, UV resistance, color protection, and gloss retention, with no migration, low odor, and no impact on paint adhesion.
- Bumpers, Front Shields, etc.
  
  Comprehensive Anti-Aging Solution for Exterior Parts (U-pack^® UV-7303/UV-7308/UV-703/B7327)
  
  Provides exterior parts with excellent heat resistance, UV resistance, color protection, and gloss retention, with no migration, low odor, and no impact on paint adhesion.
- PVB Interlayer Film for Glass
  
  PVB Interlayer Film Protection Solution
  
  U-pack^® UV-5613, RIASORB^® UV-109, RIASORB^® UV-326, RIANOX^®1010, etc., impart excellent weatherability and antioxidant performance to the material, ensuring long-lasting high light transmittance.
- Window Glass Adhesive
  
  Anti-Aging Solution for Window Glass Adhesives
  
  Provides excellent heat resistance, antioxidant performance, and weatherability, resisting adhesive hardening and cracking to ensure long-lasting durability.
- Topcoat
  
  Optimal Weatherability^® Solution for Automotive Paint
  
  Provides excellent weatherability, ensuring the topcoat does not fade, blister, or crack under natural conditions, maintaining long-lasting gloss.
Automotive Interiors

Automotive interior parts mainly include instrument panels, center consoles, headliners, seats, seat belts, door inner trim panels, pillar trims, luggage compartment trims, etc. The main polymer materials used for automotive interiors include PP, ABS, PC, PA, leather, fabrics, etc. VOC and FOG generated by continuous volatilization or degradation of interior materials can affect human health. Low VOC, low FOG, and low odor have become development trends and consumer demands.
- Nonwoven Materials such as Carpets and Floor Mats
  
  Anti-Aging Solution for Nonwoven Materials
  
  Provides long-lasting protection for nonwoven materials such as carpets and floor mats, resisting yellowing and fading.
- Door Inner Trim Panels
  
  Specialized Anti-Aging Solution for Interior Parts (U-pack^® B7327/UV-7303/UV-7308/UV-703)
  
  Meets low odor, low VOC, and zero migration requirements, providing interior parts with excellent long-term thermal oxidative aging resistance and weatherability.
- Seats
  
  Comprehensive Anti-Aging Solution for Seats (U-pack^® B7169L/B7036)
  
  Foam layer: Delays aging, ensuring durability and comfort of the foam for long-term use. Surface layer: Provides excellent anti-aging performance for PU leather and fiber surfaces, maintaining performance and color.
- Dashboard and Center Console
  
  Specialized Anti-Aging Solution for Interior Parts (U-pack^® B7327/UV-7303/UV-7308/UV-703)
  
  Meets low odor, low VOC, and zero migration requirements, providing interior parts with excellent long-term thermal oxidative aging resistance and weatherability.
- Lightfastness
- Heat Resistance
- Discoloration Prevention
- Degradation Prevention
Request Application Solution
- Nonwoven Materials such as Carpets and Floor Mats
  
  Anti-Aging Solution for Nonwoven Materials
  
  Provides long-lasting protection for nonwoven materials such as carpets and floor mats, resisting yellowing and fading.
- Door Inner Trim Panels
  
  Specialized Anti-Aging Solution for Interior Parts (U-pack^® B7327/UV-7303/UV-7308/UV-703)
  
  Meets low odor, low VOC, and zero migration requirements, providing interior parts with excellent long-term thermal oxidative aging resistance and weatherability.
- Seats
  
  Comprehensive Anti-Aging Solution for Seats (U-pack^® B7169L/B7036)
  
  Foam layer: Delays aging, ensuring durability and comfort of the foam for long-term use. Surface layer: Provides excellent anti-aging performance for PU leather and fiber surfaces, maintaining performance and color.
- Dashboard and Center Console
  
  Specialized Anti-Aging Solution for Interior Parts (U-pack^® B7327/UV-7303/UV-7308/UV-703)
  
  Meets low odor, low VOC, and zero migration requirements, providing interior parts with excellent long-term thermal oxidative aging resistance and weatherability.
Engines, Motors & Battery Components

Engine and motor surrounding components mainly include engine covers, connectors, front-end frames, cooling fans, water tank assemblies, intake manifolds, fan housings, containers, ventilation ducts, etc. Battery surrounding components mainly include battery brackets, battery trays, etc. The main materials used for engine surrounding components include PA, PP, POM, PC, PPS, etc.
- Charging Pile Flexible Cables
  
  Charging Pile Flexible Cables
  
  U-pack^® B7156, RIANOX^®1010, etc., impart excellent high-temperature resistance and antioxidant performance to the material.
- Lithium Battery Separators
  
  Lithium Battery Separators
  
  For common PE separators, PP separators, and nonwoven separators, the Optimal^® series long-lasting high-temperature resistance solutions can significantly improve the long-term high-temperature performance of the material, maintaining mechanical strength over time.
- Connectors
  
  Connectors
  
  For engineering plastics such as PBT, PA, and PPS, the Optimal^® series high-temperature resistance solutions can significantly improve the high-temperature performance of the material, maintaining mechanical strength over time.
- Potting Compounds
  
  Potting Compounds
  
  Anti-aging solutions for polyurethane and epoxy resin potting compounds and adhesives, improving thermal stability of the material and preventing yellowing and degradation of the substrate.
- Engine Surrounding Components
  
  Engine Surrounding Components
  
  High-temperature thermal stabilization solution for plastics (U-pack^® B8119), significantly improving the long-term high-temperature aging resistance of engine surrounding components, notably enhancing the thermal stability of PP components below 150°C, extending part lifespan.
- High Heat & Low-Temperature Resistance (must withstand repeated temperature cycling from -40 to 150°C)
- Strong Chemical Resistance
Request Application Solution
- Charging Pile Flexible Cables
  
  Charging Pile Flexible Cables
  
  U-pack^® B7156, RIANOX^®1010, etc., impart excellent high-temperature resistance and antioxidant performance to the material.
- Lithium Battery Separators
  
  Lithium Battery Separators
  
  For common PE separators, PP separators, and nonwoven separators, the Optimal^® series long-lasting high-temperature resistance solutions can significantly improve the long-term high-temperature performance of the material, maintaining mechanical strength over time.
- Connectors
  
  Connectors
  
  For engineering plastics such as PBT, PA, and PPS, the Optimal^® series high-temperature resistance solutions can significantly improve the high-temperature performance of the material, maintaining mechanical strength over time.
- Potting Compounds
  
  Potting Compounds
  
  Anti-aging solutions for polyurethane and epoxy resin potting compounds and adhesives, improving thermal stability of the material and preventing yellowing and degradation of the substrate.
- Engine Surrounding Components
  
  Engine Surrounding Components
  
  High-temperature thermal stabilization solution for plastics (U-pack^® B8119), significantly improving the long-term high-temperature aging resistance of engine surrounding components, notably enhancing the thermal stability of PP components below 150°C, extending part lifespan.

Solution Advantages

Long-Term Heat Resistance

Enhance the weatherability and chemical resistance of automotive exterior components — such as bumpers and headlight covers — as well as interior parts like instrument panels and seat fabrics, ensuring long-lasting appearance and performance.
Long-Term Light Aging Resistance

By incorporating antioxidants and light stabilizers, we enhance the durability of automotive plastic and rubber components — extending their service life and reducing maintenance costs.
Stable Quality

Trusted by leading customers across industries worldwide, our products deliver first-class quality with proven consistency.
Full Product Range

We offer high-quality products across the full range of mainstream light stabilizers and UV absorbers for coatings and adhesives — covering most of the industry's technical requirements and application challenges.