How long will the acrylic painting last? I want to doodle on a cotton T-shirt.

Similar to gouache, but different in water solubility. It is recommended to buy pipes, which are easy to carry and have good sealing performance. If you have to buy a bucket, dig it out in moderation. In winter, it can be preserved for at least a week by adding wet method like gouache. Be sure not to put it in a heated room, because the paint will be wasted.

T-shirt, just draw it as soon as possible after digging it out ~ T-shirt graffiti that should be no problem is usually finished soon. Try not to draw the pencil too "deep", otherwise it won't cover it, and drawing it too deep seems to be bad for the fabric ~ specific analysis of specific problems ~