Color On Demand

Spectra Photopolymers offers a number of fully formulated additive products to provide photoinitiated color change for a variety of applications. Further customization of the existing products for the needs of a particular application will be performed.

UV Coating Additives

A simple to use and definitive indicator to provide for certainty of exposure
Multiple colors available for both 100% solids UV and waterbased coatings
NEW, Amine-FREE color change additive for both 100% solids and waterbased formulations (Red-to-clear)
NEW Violet-to-Clear, Amine-FREE color change additive for waterbased formulations

Image: On-Demand-Color Liquid vs Solid

Adhesive Cure Verification

Both color formation and bleach

Color-On-Demand Color Formation and Bleach

Image: Unexposed (blue) and Exposed (bleached) to UVA light

Three-dimensional Polymer

Color bleach in three-dimensional polymers

Image: Before (red) and after (bleached) 10 min exposure to UV (UVA chamber)

Color-On-Demand Irreversible FormulatedProducts

Product Type	Recommended Usage	Product Description	Color Change Scheme
Formulated Inks and Coatings	Screen Printing Solvent Casting Various In-Line Coaters (i.e. slot-die) Pad Printing	Solvent Based Screen Printing Ink S LOV IS Series	Forming, Bleaching, Changing Reversible Photochromics
		Solvent Based Inks for In-Line Coating	Forming, Bleaching, Changing Reversible Photochromics

Liquid Additives/Concentrates	Addition to solvent-based systems	Base - acetone, MEK, propylene carbonate, diacetonealcohol, diglyme, N, N-dimethyl acrylamide (N,N-DMAA)	Forming, Bleaching Reversible Photochromics
	Addition to waterbased systems	Base - diacetonealcohol, triethanolamine, water	Forming, Bleaching
	Radiation Curable VOC-free systems (cationic and free radical)	Base - cycloaliphatic epoxy, various acrylate monomers, diacetone alcohol, propylene carbonate, N, N-dimethyl acrylamide (N,N-DMAA)	Forming, Bleaching Reversible Photochromics