I use paint-filled squeezer markers, which are really designed for graffiti artists doing tags; they’re made to drip a little bit, and they make naturally thick, blotchy lines, but I usually control the lines. I don’t mind when the markers drip a bit, though – it happens organically. The only difficult part in this exhibition was when I was working in the dome part of the museum, and had to be on top of scaffolding to reach the ceiling. When the paint markers are used upside down, they don’t work as well, so I had to keep blotting them on paper. Apart from the paint markers, two of the paintings in this show have spray paint. I also used emulsion for the backdrops on the canvases and applied it with a paint roller.