Why is the paint peeling as you paint with enamel paints on glass?

Peeling paint on glass when using enamel paints can occur due to inadequate surface preparation, such as not cleaning or priming the glass properly. Glass is a non-porous surface, which makes it difficult for paint to adhere effectively; without a proper bond, the paint can lift away as it dries. Additionally, applying paint too thickly or in humid conditions can exacerbate the peeling issue. To prevent this, ensure the glass is clean, use a suitable primer, and apply thin, even coats of enamel paint.