DIY chalk paint is easy to make, but it doesn’t keep well. Make your paint the same day you plan to use it. If the chalk paint seems to be thin or runny, add more cornstarch. It can take some ...

But cornstarch gel is pretty clear, which means that if you paint it onto something like a canvas or T shirt, it isn’t that visible. To make cornstarch gel into a good paint, you have to add pigment ...