Optical Brightener for Solvent-Based Applications – UV Fluorescent Whitening Agent

Optical Brightener for Solvent-Based Applications

Achieve brilliant, high-contrast fluorescent whitening in non-aqueous systems with our solvent-compatible optical brightener. Formulated specifically for solvent-based coatings, inks, plastics, and resins, this optical brightening agent (OBA) absorbs UV light and re-emits it as visible blue-white fluorescence — making surfaces appear whiter, brighter, and more vibrant than the naked eye would otherwise perceive.

Whether you're enhancing the visual appeal of a clear coat, improving the perceived brightness of a plastic compound, or adding a fluorescent tracer to a solvent-borne ink, this OBA delivers consistent, measurable results at low use levels.

Key Features

• Solvent-Compatible Formula — Fully soluble in common organic solvents including toluene, xylene, MEK, ethyl acetate, and aromatic blends
• High Fluorescence Efficiency — Strong UV absorption (peak ~370nm) with intense blue-white emission for maximum brightening effect
• Low Use Level — Effective at concentrations as low as 0.01–0.1% by weight, minimizing cost impact on formulations
• Thermally Stable — Maintains performance through typical processing temperatures in plastics and coatings applications
• Broad Substrate Compatibility — Suitable for use in polyurethane, epoxy, alkyd, acrylic, and other solvent-borne resin systems
• UV Tracer Functionality — Glows visibly under UV/black light, enabling use as a fluorescent marker or process tracer

Typical Applications

• Solvent-based coatings and varnishes
• Solvent-borne printing inks and flexographic inks
• Plastics compounding and masterbatch
• Adhesives and sealants
• Fluorescent tracer and leak detection formulations
• Industrial and specialty coatings requiring optical enhancement

Why Optical Brighteners Matter in Solvent Systems

In solvent-based formulations, achieving true optical brightness requires an OBA that dissolves cleanly without haze, precipitation, or compatibility issues. Our solvent-grade optical brightener is engineered to stay in solution, resist yellowing under UV exposure, and deliver a consistent fluorescent response batch after batch — giving formulators the confidence to spec it into production without surprises.

Recommended use level: 0.01–0.5% by weight depending on substrate and desired effect. Always conduct compatibility testing in your specific formulation prior to full-scale use. Handle with appropriate PPE; refer to SDS for safety information.