DFSB-C7100G Invisible Fluorescent Red Dye for UV-Reactive Inks & Coatings

DFSB-C7100G Invisible Fluorescent Red Dye for UV-Reactive Inks & Coatings

100 grams of our DFSB-C7 Ultra Violet Dye. Invisible to the naked eye under normal light, brilliantly red under UV — our invisible fluorescent red dye is engineered for formulators who need covert UV reactivity in inks, coatings, varnishes, and specialty finishes. At ambient light levels, treated surfaces appear completely clear or unaltered. Expose them to a UV or black light source, and a vivid red fluorescence reveals itself instantly.

This makes it the go-to choice for security marking, authentication, anti-counterfeiting, process tracing, and any application where a hidden UV signal adds value without affecting the visible appearance of the finished product.

Key Features

• Invisible Under Visible Light — No color shift, haze, or tint in the cured or dried film under normal lighting conditions
• Vivid Red Fluorescence Under UV — Bright, high-contrast red emission when excited by UV/black light (365–395nm)
• Ink & Coating Compatible — Formulated for use in solvent-based, UV-curable, and select water-based ink and coating systems
• Low Treat Rate — Effective at very low concentrations, minimizing impact on viscosity, adhesion, and other formulation properties
• Covert Security Marking — Ideal for authentication, brand protection, and anti-counterfeiting applications
• Thermally Stable — Maintains fluorescent performance through typical ink and coating processing and cure conditions
• Broad Resin Compatibility — Works in acrylic, polyurethane, epoxy, alkyd, and UV-cure resin systems

Typical Applications

• Security inks and covert authentication printing
• Anti-counterfeiting coatings and varnishes
• UV-curable inks and overprint varnishes
• Solvent-based industrial coatings and lacquers
• Fluorescent tracer dyes for process verification
• Brand protection and document security
• Specialty packaging with hidden UV features

The Power of Invisible UV Marking

Imagine a coating that looks perfectly clear on the shelf, on the label, or on the document — but the moment a UV light sweeps across it, a red fluorescent signal confirms authenticity, traces a process step, or reveals a hidden mark. That's exactly what this dye delivers. Formulators get a clean, invisible additive that doesn't compromise aesthetics, while end users get a reliable, covert UV response that's easy to verify and hard to replicate without the right chemistry.

Recommended treat rate: 0.01–0.5% by weight depending on substrate, resin system, and desired fluorescence intensity. Conduct compatibility and stability testing in your specific formulation prior to production use. Refer to SDS for handling and safety information.