Make sure your previous layer of paint is dry.Paint another layer of titanium white only where you want to put your transparent color. Let the white dry. … Paint your color over the white or black.

How do I make a transparent color opaque?

A common solution for artists if they want the hue of a certain pigment which is transparent, but they wish it to be opaque, is to add a small amount of Titanium White. The key is to add enough to add some opacity without lightening the colour too much.

How do you make paint opaque on glass?

In any case, the trick to producing opaque glass paint coatings is to apply thin coats to your glass surface, allow the paint to dry completely, and reapply the paint in thin coats until you achieve your desired opacity.