Automotive Interior Testing
Colorfastness
Colorfastness testing of automotive interior components is is used to determine whether materials like seats, carpets, and trim retain their color and appearance when exposed to various environmental and usage conditions. Different types of colorfastness tests include lightfastness (resistance to fading under UV light (Click to Learn More) crocking (resistance to color transfer when rubbed), and resistance to chemicals or cleaning agents.
Testing typically involves exposing the material to simulated conditions such as UV light, abrasion, or chemical exposure in controlled environments. The results are measured by comparing the color before and after testing, using visual assessments or colorimetric instruments. These tests help manufacturers select durable materials that withstand real-world use.
Common Test Methods and Standards
Why is testing necessary for automotive interior components?
Types of Materials Commonly Tested
Seating •Leather (natural and synthetic) •Fabric upholstery •Foam padding •Seat frames and mechanisms •Stitching and thread •Heated/ventilated seal components Dashboard •Plastics (ABS, PVC, polyurethane) •Soft-touch coatings •Plated plastic trim •Displays •Vents and HVAC controls •Adhesive layers and bonding materials Instrument Panel •Cluster displays •Buttons, knobs, and switches •Touchscreen surfaces •Backlighting components •Haptic feedback mechanisms Center Console and Door Panels •Plastic trim and bezels •Leather or synthetic coverings •Cup holders, storage compartments •Electronic components (USB ports, chargers) •Armrest materials and padding Wood, metal, or carbon fiber accents •Window switchgear and buttons •Interior door handles and lock mechanisms Steering Wheel •Leather wrapping or synthetic materials •Metal and plastic structural elements •Control buttons •Heated steering components •Airbag cover materials Flooring and Mats •Carpet fibers •All-weather rubber mats •Sound-dampening materials •Floor insulation layers Roof Liner •Fabric liners •Sunroof or panoramic roof trim •Insulation and soundproofing materials Interior Lighting •LEDs and backlighting modules •Ambient lighting strips •Dome and reading lights