Resin-Free High-Transparency Nano Color Pastes

NA pastes offer dye-level full transparency but with pigment-grade performance: zero migration (dyes always bleed and stain), light fastness grade 8+ (dyes typically grade 2-4), heat resistance 260-300°C, and no discoloration after baking. NA is a true dye-replacement for high-performance applications where migration and fading are unacceptable.

NA series is 100% organic-resin-free, using pure PMA (propylene glycol methyl ether acetate) as the carrier solvent. This ensures no resin interference, excellent compatibility with a wide range of resin systems, no disruption to curing or film formation, and no damage to resin structure.

Zero migration means the color will never bleed, stain, or transfer to adjacent materials or layers over time. Unlike dye-based color concentrates which inevitably migrate and cause staining (especially in multi-layer films, leather, and coated substrates), NA nano pigments remain permanently locked in the applied layer. This is critical for electronic packaging, optical films, and leather goods.

NA pigments are dispersed to an ultra-fine particle size of 90-150nm. This nano-scale dispersion achieves dye-level transparency while maintaining pigment integrity. The small particle size also ensures excellent dispersibility, no filter blockage, uniform color in thin films, and no effect on optical performance in transparent substrates.

NA series is designed for high-performance applications including: optoelectronic functional films (anti-peeping films, light-filtering films, touch screen optical films on PET/PC/BOPET), electronic component packaging, automotive topcoats, high-end industrial coatings, precision printing inks (circuit board marking, hot stamping inks), functional optical plastics (lenses, lens substrates), and premium leather recoloring for luxury goods.

NA series offers heat resistance from 260°C to 300°C depending on grade. The resin-free formula ensures no discoloration after baking at 260°C for 10 minutes or 220°C for 30 minutes. High-heat grades (2817 champagne gold, 1916 gold, BK7 black, 1021 black) withstand up to 300°C, making them suitable for high-temperature film curing and industrial baking processes.