While acrylic paint can completely change the look of a glass surface -- such as a wine glass, mason jar or ornament -- the paint itself can easily come off with everyday use. Applying a sealant over the painted glass helps to prevent the paint from chipping, fading and wearing off. Acrylic sealant is available in spray-on and brush-on forms. However, you should choose a sealant, polyurethane coating or polyurethane varnish with a glossy finish that is safe for use on glass surfaces. Avoid matte finishes, which will affect the natural glossy look of the glass.
Things You'll Need
- Spray-on glossy acrylic sealant or clear polyurethane coating
- Glossy polyurethane varnish
Shake the spray-on sealant can for several seconds until well mixed.
Remove the lid from the can. Hold the can about 12 inches away from the glass surface.
Spray the entire surface lightly with the sealant using a sweeping, back-and-forth motion. Avoid applying the sealant in a continuous spray.
Apply an additional one or two light coats to the surface, allowing the sealant to dry about 15 minutes between each coats.
Place the glass in an undisturbed area where is can dry completely for at least 24 hours.
Dip a clean paintbrush into the varnish. Hold the brush over the varnish container. Allow the excess varnish to drip off the brush and back into the container.
Brush on the varnish covering the entire painted surface with a light layer of the sealant. Let the varnish dry for about an hour.
Apply an additional one to two light coats of the varnish, allowing it to dry after each application.
Allow the glass to dry for at least 24 hours in an area where it won’t be disturbed.
Tips & Warnings
- Since every acrylic sealant is different, make sure to always read and follow the instructions found on the bottle or can.
- Work in a well-ventilated or outdoor location to prevent the buildup of potentially dangerous fumes.
- Make sure the paint on the glass is completely dry and the surface is clean and dust free before applying the sealant.
- Even after sealing, painting glass wear -- such as cups and wine glasses -- should only be hand washed and never placed in the dishwasher.
- Acrylic Revolution: New Tricks and Techniques for Working with the World's Most Versatile Medium; Nancy Reyner
- I Love To Create: How to use Aleene's® Spray Acrylic Sealer™
- Krylon Industrial: Krylon® Clear Polyurethane Coatings
- Elder On Stop: How To Paint Glass The Easy Way
- Twim and Vines: DIY – Painted & Distressed Mason Jars
- Photo Credit Christopher Brignell/iStock/Getty Images
Paint Glass with Acrylic Paints (No Artistic Ability Required!)
Glass surfaces are easy to paint. And with the right paint — and care — your designs will stay on permanently.
How to Keep Acrylic Paint From Flaking Off Glass
While acrylic paint is very sturdy, after it dries on a glass surface it can chip, peel and flake off quite easily....
How to Seal Acrylic Paint
Versatile acrylic paint lends itself to surfaces ranging from cloth to glass to leather, but artists most commonly use acrylics to create...
How to Use Acrylics to Create Faux Stained Glass Windows
Creating a faux stained glass window is a way of adding the beauty of stained glass to your home without the expense...
Painting on Glass With Acrylics
Learn how to paint on glass with acrylic paints in this free how-to video art lesson.