Is your black UV coating truly cured—or just surface dry?

In laptop and smartphone housings, achieving a deep, uniform black finish is essential for both aesthetics and durability. However, high pigment loading in black UV coatings often creates a critical challenge under LED curing systems.

Due to strong UV absorption, black pigments can generate a shadowing effect, where the top layer appears cured while the underlying coating remains insufficiently cured.

What does this mean for your production?

• Adhesion Issues

  Risk of coating delamination on plastic or metal housings during assembly or

  long-term use

• Surface Defects

 Residual tackiness leading to dust pickup, fingerprint marks, or uneven finish

• Inconsistent Quality & Yield Loss

  Variations in curing across complex geometries, impacting overall production stability

NASOL: Designed for High-Performance Black UV Coatings

To address these challenges, Kelly Chemical introduces NASOL, a UV nano pigment paste platform engineered for reliable curing in high-opacity black systems—especially under LED conditions.

Why NASOL Works for Device Housing Applications

• Optimized for LED Curing (365 / 385 / 395 nm)

  Ensures efficient curing under narrowband LED sources, supporting faster production

  cycles and reduced thermal impact on heat-sensitive substrates.

• Enhanced Through-Cure via Nano-Dispersion

  Ultra-fine particle dispersion minimizes light scattering, allowing UV energy to

  penetrate deeper through black coatings—achieving true through-cure from surface

  to substrate.

• High Jetness with Excellent Processability

  Delivers deep, premium black appearance while maintaining low viscosity, smooth

  leveling, and stable coating performance.

Reliable Black Finishes, Without Compromise

Whether you are transitioning to LED curing or optimizing coating performance for high-end device housings, NASOL helps you achieve both visual quality and curing reliability—without sacrificing process efficiency.

Request TDS and samples today to evaluate NASOL in your coating system!