Benzimidazolone Pigment Red PR185 SIC-S4185

Klarint ^® SIC-S4185 is a predispersed pigment chip manufactured via a melt dispersion process, utilizing Eastman CAB-551-0.2 as the carrier resin. The coloring component is a high-weather-resistance, high-transparency Benzimidazolone Red PR185. The pigment is uniformly distributed within the resin matrix at a nanoscale level, resulting in a granular/flake solid form.

This product eliminates the need for conventional milling processes. It dissolves rapidly in solvent systems and is specifically designed for demanding high-end industrial coatings where color stability, weather resistance, and transparency are critical.

Pigment Properties

Mechanism & Advantages

1. Grinding-Free Dispersion Mechanism

SIC-S4185 CAB pigment chip offers a practical alternative to conventional grinding of Benzimidazolone Red C.I. Pigment Red 185 solvent-based pigment paste. It enables users to prepare the required amount of pigment paste within 30–40 minutes, without the need for grinding equipment or a dedicated production line.

2. Stable Pigment- Resin Interface

In traditional liquid pigment pastes, pigment particles are prone to flocculation, sedimentation, and coarsening after 2–3 months of storage, leading to color drift. SIC-S4185 is supplied as a dry solid. In the absence of solvent, the pigment-resin interface is in a thermodynamically frozen state with no driving force for migration or aggregation. This provides a shelf life exceeding 24 months without special storage or transportation requirements.

3. High Transparency and Blue Shade Characteristics

PR185 pigment inherently exhibits molecular planarity due to its benzimidazolone structure, favoring the formation of a highly ordered crystalline morphology. Through optimized dispersion processing, SIC-S4185 controls the pigment particle size within the optimal transparency range (D50 < 200 nm), minimizing light scattering. Combined with PR185's inherent blue-shade absorption, the chip imparts a high-clarity, high-intensity, high-saturation red appearance, making it especially suitable for metallic basecoats and multi-layer coating systems.

Recommended Applications

SIC-S4185 is suitable for the following demanding coating and ink systems requiring high weather fastness and transparency:

· Automotive OEM Coatings

· Automotive Refinish Paints

· 3C Electronics Coatings (notebooks, mobile phones, wearables)

· Interior & Exterior Automotive Decorative Paints

· High-end Wood Coatings

· UV Gel Nail Polish

· High-performance Printing Inks 

Storage & Packaging

Packaging: Standard package is 20Kg/barrel, accept customized package.

Storage Conditions: Keep the product un-stacked in dry and closed rooms at normal temperature and air humidity.

Shelf Life: 24 months (unopened original packaging)