Dear all,
I'm looking for an orange pigment for an aerosol formulation. Binder : acrylic. Solvent : ketonics and acetates. Propellant : diethyl ether. We tried, first, a monoazoic orange 5 that didn't go well in such polar solvents. After a month @ 50°C, it became dark brown. We've got a pyrazolone orange 13 that behaves better in solvents, but has low UV resistance. We also have a benzimidazolone but the price is so huge that we didn't even try it.
My questions are twofold :
1 - Does anyone know where I can find a list of the chemical nature of pigment related with their colour index ?
2 - Does someone think of a particular orange pigment, with a strong shade, near the red, so that we can formulate it to get a RAL 2009 ? ... at a price lower than 20-30?/kg ?
Thank you in advance.
Nicolas DELFAU Peintures SOB FRANCE Tél : (+33)5.65.38.60.20 e-mail : snipped-for-privacy@peintures-sob.fr