Heat Stability Requirements for Plastics Coloring
Ultramarine Blue for Plastics processing must survive temperatures that would destroy most organic colorants. Polypropylene injection molding operates at 200–260°C; engineering plastics like PA6 and PBT reach 260–300°C; PEEK compounds process above 370°C. Only inorganic pigments like Ultramarine Blue for Plastics — stable to 400°C — can handle these conditions without color shift, outgassing, or polymer degradation.
SKU Pigments produces dedicated Ultramarine Blue for Plastics grades with specially controlled particle size distribution and optional surface treatment for improved polymer compatibility and dispersion. Our heat stability certificates confirm zero color deviation (ΔE <0.5) after processing at 300°C for 10 minutes — the industry-standard test condition.
Masterbatch Formulation with Ultramarine Blue for Plastics
The most efficient way to incorporate Ultramarine Blue for Plastics is through masterbatch concentrate. Typical masterbatch parameters:
- Pigment loading: 20–40% Ultramarine Blue in carrier polymer
- Carrier options: PP homopolymer, PE (LDPE/LLDPE), universal EBA carrier
- Let-down ratio: 1:25 to 1:50 in natural resin (giving 0.4–1.6% final pigment content)
- Processing temperature: Up to 250°C extrusion without color change
For surface-treated grades of Ultramarine Blue for Plastics, wetting agent addition is not required — the surface treatment provides all necessary compatibility. Contact SKU Pigments for application-specific grade recommendations and free masterbatch trials.
Products: UB for Plastics | UB for Masterbatch | Free Sample
Resources: Society of Plastics Engineers | ISO Plastics Standards
Related Reading: Ultramarine Blue for Paint | Pigment Blue 29 Guide | Industrial Pigment Manufacturer
About SKU Pigments: Shree Krishna Ultramarine Pigments P. Limited is India’s leading manufacturer of Ultramarine Blue (Pigment Blue 29), Ultramarine Violet (Pigment Violet 15), and Ultramarine Pink pigments. ISO 9001:2015 certified. Exporting to 40+ countries. Contact us for free samples and export pricing.