It's entirely possible to paint on glass using regular acrylic paint, but for best results, you need to seal the paint on the glass. There are two ways to do so, and both are quite straightforward. One uses a spray-on or brush-on sealant; the other uses a home oven to bake the painted glass item.
CONVENIENT SIZE - This 12 oz clear acrylic sealer is a must-have to your art supplies GLOSSY, CRYSTAL CLEAR FINISH - When dry, this easy-to-use
Mod Podge Spray Acrylic Sealer that is Specifically Formulated to Seal Craft Projects, Dries Crystal Clear is Non-Yellowing No-Run and Quick Drying
How to Seal Acrylic Paint on Glass - (2 Main Methods)
How to Seal Acrylic Paint on Glass: A Quick Guide
Easy DIY Painted Coffee Mugs (Dishwasher Safe Too!)
Acrylic Paint on Glass: How it Works I Nova Color
How to Write and Paint on Acrylic Signs — Raleigh Calligraphy & Design
How To Seal Acrylic Paint On Glass? Make It Last A Lifetime
How to Seal Acrylic Paint on Glass: A Quick Guide
Glass Painting: A Delicate but Easy Craft
How to Make Acrylic Paint Stay on Glass For A Lifetime (Easy)
How to Seal Acrylic Paint on Glass: A Quick Guide
4 Ways to Paint Glass Jars - wikiHow