The added heat makes the vinyl stick better.
Can you put heat transfer vinyl on mugs.
I will say my favorite application method for the heat transfer vinyl on a mug was the mini iron.
As an extra step i bake the mugs in the oven.
Transferring outdoor vinyl is scary business on mugs what with compensating for the curve of the mug making sure there are no bumps and most difficult of all making sure that your vinyl is on exactly the right place.
All i did was put the mugs in an oven safe dish into the oven.
Now there is also the easypress mini that will work great for projects like these.
Now if you are going to hand wash your mugs you can probably use either adhesive vinyl or heat transfer vinyl and any of the application methods mentioned.
With htv it s completely different.