This is a 'knockout' paint, I am quite happy with this as a replacement for Cadmium Red on my palette. Almost opaque, extremely lightfast, very clean and punchy.
More lightfast than Napthol red and a lot less toxic than Cadmium Red I believe this is the most functional mixing red currently available. It seems less sticky and heavy compared with Cadmium Red.
I believe the pyrrole group of pigments will become the default oranges and reds for the oil painter, simply they are an improvement on what is currently available, derived from paint finishes in the automotive industry this is a very tough and resistant pigment.
Please try this, you will not be disappointed.
Pigment - PR254, Diketopyrrolo Pyrrole
Vehicle- Linseed Oil, Consistency - Buttery