I have some Sennelier half pans; cinereous blue is one of their unique colors and it's a good replacement for PB35 Cerulean Blue which also granulates. I'm assuming the white adds the granulation as Phthalo Blue GS doesn't granulate in my experience. The problem with Sennelier is a lot of their colors are 2 and 3 pigment mixes, like Gold Ochre which is not only opaque but is a mix of three PY 119, PY42, PY83. Even the Quinacridone Gold is a three pigment mix. I like how their colors dissolve quickly and you can get really good washes.
I have some Sennelier half pans; cinereous blue is one of their unique colors and it's a good replacement for PB35 Cerulean Blue which also granulates. I'm assuming the white adds the granulation as Phthalo Blue GS doesn't granulate in my experience. The problem with Sennelier is a lot of their colors are 2 and 3 pigment mixes, like Gold Ochre which is not only opaque but is a mix of three PY 119, PY42, PY83. Even the Quinacridone Gold is a three pigment mix. I like how their colors dissolve quickly and you can get really good washes.