Pigment Red 170: Exceptional Color Fastness and Weather Resistance in Plastics

Pigment Red 170 is a high-performance, bluish red organic pigment widely used for plastic coloration due to its outstanding fastness and weathering properties.

Key Technical Features

Exceptional Color Fastness:
PR 170 exhibits excellent light fastness, typically rated at level 6–7 (on the blue wool scale). This means it maintains its vivid, brilliant red shade even with prolonged exposure to UV light, making it suitable for both indoor and outdoor plastic products.

Superior Weather Resistance: In outdoor exposures, PR170 resistantly retains its color integrity due to its strong molecular structure and stability. Its weather fastness is highly valued in demanding environments and outdoor plastic goods (like seats, outdoor toys, and furniture).

Heat Stability: PR170 is stable in polyolefins (such as HDPE and PP) at processing temperatures up to about 200°C. Certain grades offer heat resistance even up to 240°C.

Chemical Resistance: The pigment demonstrates excellent resistance to acids, alkalis, and common plasticizers,which prevents fading or color migration in harsh environments.

Transparency and Shade Variation: Available in two crystal forms—transparent F5RK (bluish red) and opaque F3RK (moreyellowish, high hiding power. Manufacturers can select the appropriate grade based on required transparency and application.

Halogen-Free: Both F3RK and F5RK variants are halogen-free, supporting environmental and safety compliance.

Typical Plastic Applications

Polyolefins: Highly recommended for PE, PP, HDPE, LDPE. Used in both fiber and bulk plastic coloring,ensuring durable, appealing shades in everyday items.

PVC: The F3RK (opaque) type is suitable for PVC, especially in flexible applications demanding better solvent and migration resistance.

Engineering Plastics: Can be used in specialty applications where heat and light stability are critical.

Color Masterbatches: Often used in masterbatch formulations for automated and consistent dosing during plastic processing.

Quality Benefits in Plastics:

Lasting Color Performance: Maintains vibrant, non-fading hues over time, even for plastics exposed to sunlight or harsh weather.

Process Compatibility: Compatible with standard polyolefin processing, offering low warpage and good dispersion in plastic matrices.

Broad Application Utility: Beyond plastics, also valued in inks, coatings, and fibers, but in plastics, its combination of color strength, durability, and environmental performance stands out.

Conclusion:
Pigment Red 170 is a premium solution for vibrant, enduring coloration in plastics. Its remarkable fastness, stability, and safety profile make it a preferred choice for manufacturers seeking both performance and high aesthetic value in plastic products.