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Use acrylic paint as an underpainting. It can be safely used in combination with gouache. To retain as much as possible of the character of a gouache painting (the matte look and texture), I suggest diluting it nevertheless, which, in addition, will help keep an eventual underdrawing visible and improves adhesion (based on the discussion here, it otherwise ...


3

Your problem is the opacity of most fabric paints; most liquid ones are only designed to work effectively on a white or light-colored shirt, and the thick plasticky "puffy paint" writers aren't going to be effective over large areas or in stencils. If you're working with just white, opaque white screen printing ink for fabric works very well. It ...


2

Not much adheres to nylon. Umbrella fabric with a tight weave also won't provide an opportunity for paint to get through pores and lock itself to the material. The weave will provide more surface area than a smooth film, but I wouldn't expect paint to stick long term unless you can find some designed for nylon. There's something you could try (haven't ...


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