The top must be washed beforehand to remove the sizing finish (that may prevent the paint from setting fast) then ironed. Start by painting the 'branches' of one color on one side of the top. Do this by applying paint directly from the applicator nozzle of the bottle of paint, applying an even pressure onto the paint tube. Diam's paint tubes are not very rigid, which is much better when the job takes a while.. Every time you're ready to apply some paint using the nozzle, start on a sheet of paper, tipping the tube vertically to avoid air bubbles in the paint. Otherwise there's a risk that when you squeeze the bottle, an air bubble will escape, together with a fine spray of paint that will ruin your work.