To seal acrylic paint on ceramic mugs you may need a high quality sealant or varnish made for acrylic paint to spray or brush over your work.
Seal ceramic mug.
A sudden jar or clink also may turn the crack into a shattered mug.
You don t want all your hard work and the cash you spent on the supplies to go to waste.
A customized mug can also make a perfect gift for someone close to you.
That said you d want your design to last longer on that mug and not peel off easily.
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Cracked ceramic is unsafe.
If you want you can modge podge just the painted area after you bake it.
Luckily you can make the vinyl strongly bond with your mug and last longer by sealing it in place.
Use the biggest softest synthetic brush you can find and quickly brush downward in an even stroke from tape to tape.
Favorite coffee mugs naturally see a lot of use often resulting in faded images and sadly cracks.
Or tape down from the lip of the mug about 3 4 to 1 in turn the mug upside down and spray with a clear sealcoat don t get any inside or where a person s lips would touch on the outside.
With the next stroke overlap by 1 16 or 2mm and work your way around.
Put the mug to be painted upside down on stick it on a plastic cup.
Otherwise you can bake the paint onto the mug by carefully heating it in the oven.