Add a Pop of Color to Your Glassware! | Brit + Co. If you’re painting on glass you can bake them which will help set the color . Put them in a cold oven turn the oven on to 350 and bake 30 minutes. Leave in the oven until they are completely cooled.
How to paint glass.... Idea: Handprint or footprint on for Mom/Dad's Day: "Gloss acrylic paint and the sharpie paint pens. Let cure for 3 days. Then get krylon spray gloss and spray it on. Wait 1 day. And bake at 350 degrees. Put them in when you set the oven, then when it beeps time 30 mins and then turn off the oven and wait till it's completely cool and pull it out! Bam!"