Street teams and activists planting wheat-paste posters across the city have to stir the wheat paste continuously for half an hour, like it’s a risotto or polenta or something, if you ever doubted their commitment. The plywood has a light wash of latex primer, which isn’t obvious in the picture. Final size with the plywood is 24×36″.
Incidentally, are you feeling your midterm feelings? I have 24 posters of “I Will Work Harder” (the only prints I’ll be making) that will help you feel them! $20 + shipping, send me a message if you’re interested.