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High photostability under intense UV exposure, ensuring long-term color integrity in demanding outdoor applications.
Excellent dispersion stability in UV-curable resin systems, minimizing settling and filter clogging during processing.
Low volatility and non-migrating formulation, supporting compliance with stringent regulatory requirements for coated substrates.
Optimized rheology for seamless integration into digital inkjet and flexographic UV inks without viscosity spikes.
Broad compatibility with acrylate-based monomers and oligomers, including multifunctional urethane and epoxy acrylates.
UV-curable digital inks for industrial coding, labeling, and decorative printing on plastics and metals.
UV-flexo and UV-gravure inks used in high-speed packaging printing for food and pharmaceutical secondary packaging.
UV-curable coatings for automotive interior trim, control panels, and appliance fascias requiring durable chromatic performance.
Screen-printed UV inks for electronic component marking, PCB legends, and membrane switch overlays.
UV-curable overprint varnishes and spot-color effects in premium folding carton and luxury packaging.
| Chemical Type | Organic pigment dispersion in UV-reactive carrier system |
| Product Form | Paste (non-aqueous, solvent-free) |
| Appearance | Homogeneous, viscous paste; color-dependent hue and opacity |
| Primary Applications | UV-curable inks, coatings, and adhesives |
| Key Features | UV-stable, low migration, high tinctorial strength, excellent dispersion |
| Compatible Resin Systems | Acrylate-based monomers & oligomers (e.g., TMPTA, Urethane acrylates) |
| Storage Conditions | 15–25 °C, protected from light and moisture; shelf life ≥12 months unopened |
| Regulatory Compliance | Meets EU REACH Annex XVII; compliant with FDA 21 CFR §178.3297 for indirect food contact (when formulated per guidelines) |
Q1: What is the primary application of Hostatint UV RL Color Paste?
A: Hostatint UV RL Color Paste is specifically formulated for coloring UV-curable inks, coatings, and adhesives, where high photostability, low migration potential, and excellent dispersion stability under UV exposure are required.
Q2: Is this color paste compatible with common UV-curable resin systems?
A: Yes — it is designed for compatibility with standard acrylate-based UV systems, including monofunctional and multifunctional monomers and oligomers. Compatibility testing in the final formulation is recommended due to system-specific variables such as photoinitiator type and cure conditions.
Q3: How should Hostatint UV RL Color Paste be incorporated into a UV formulation?
A: It is typically added during the pre-mix stage under moderate shear, followed by thorough dispersion to ensure uniform distribution. Avoid prolonged high-shear processing or excessive heat, which may affect rheology or stability.
Q4: Does this product contain volatile organic compounds (VOCs) or solvents?
A: Hostatint UV RL Color Paste is a solvent-free, highly concentrated pigment paste based on reactive or non-volatile dispersants, supporting low-VOC and high-solids UV formulations.
Q5: What is the typical dosage range for effective coloration?
A: Dosage depends on the desired shade strength and substrate opacity, but it is generally used at low concentrations — typically ranging from 0.1% to 2% by weight in the final UV-curable formulation.
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E-mail: wangxingqiang@ericwchem.com
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