Jan uses translucent layers of colour in which he searches for specific hues and colour nuances. He uses the aspect of painting as a tool to question the border between painting and other media. He currently uses gel mediums as a base combining different pigments, sometimes transparant and sometimes opaque, like kobalt blue. Using pigment as a raw material reveals the different qualities of the pigment; some are chunky and will break apart, others are smooth and totally dissolve in the base material.