... chrome yellow, 2PbSO4 + Al (OH) 3 + AlPO4]. Chromic acid levels not less than 50%, bright color, green, paint, with good ... color, the emerald equivalent 10G. Lightfastness of 4 ~ 5 levels. Resistance to 140 degrees Celsius. Water permeability, oil perjmeability for ... and lustre is equivalent to G. Lightfastness of 4 ~ 5 levels. Resistance to 140 degrees Celsius. Water permeability, oil perjmeability ...