LumaFlex™ GP 39 Rubine Red is a radiation-curable dispersion of 39% lithol rubine red (Pigment Blue 57:1) in a mixed oligomer system. This high-flow, low viscosity fluid vehicle system has been optimized for use with paper and board, with possible applications with some surface-treated or oxidized films as well. Recommended dosage of LumaFlex™ GP 39 Rubine Red is 45%-65% by weight in a finished ink. LumaFlex™ GP series energy-curable bases feature soft easy-to-handle viscosity with excellent pigmentation levels.

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Typically used to make Process Magenta inks, 45% to 65% of LumaFlex GP 39 Rubine Red by total formula weight is considered a normal loading for most liquid flexo & gravure ink formulas. Excellent results for coated and uncoated stock flexographic & gravure ink formulas can be obtained by blending LumaFlex GP dispersions with LumaFlex composite letdown varnish. 

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Chemical Resistance: 5% HCl: Fair 5% NaOH: Fair

Bleed Resistance:
Water: Very Good Ethanol: Good Hot Paraffin: Good Soap: Poor Lacquer Solvents: Good Linseed Oil: Excellent Diethylene Glycol: Good Mineral Spirits: Excellent

Lightfastness: Full Strength: Good Tint: Fai

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SPECIFICATIONS:

Pigment type: Lithol Rubine Red 57:1

Color Index No: 15850:1

Pigment Content: 39%

Solvent Content: 0%

Solvent Boiling Range: N/A

Bio/renewables content: 10.5%

Vehicle type: UV- or EB-cure acrylic esters & epoxies

Appearance: Thin red paste