8x12 Inch Sublimation Shrink Wrap Sleeves, 60 Pcs White Sublimation Shrink Wrap for Tumblers, Mugs, Cups and More

First of all the heat gun was barely blowing and not at the high temp and it immediately started to make burn holes in the wrapper exposing the sublimation paper I had underneath it. I figure I would still just put it in the oven to sublimate my tumbler. Then it melted onto the silicone mats. When we took it out of the oven to unwrap it, the rest of the wrap had more holes throughout it and the wrap literally became hard plastic chunks that you had to literally take something to chip off the pieces of the plastic just to get to the sublimation paper to take off the cup. You can see the bottom of the cup has hard burn plastic pieces on it and as I took a little pick to pop off the hard pieces it would pull off the paint as well.

I used to use a mug press for my tumblers but I had trouble with uneven heat and pressure so I decided to try the convection oven and shrink wrap method and Im so glad I did. These sleeves are super easy to use and give me even pressure all over.

These wraps made a mess of my oven, my mug, and were extremely difficult to use. I would NOT recommend these, even for free!

These are awful. They melt and bubble at temperature above 300. Sublimation requires 350-400 degrees to even work, so these are useless. Hard to get them to even shrink to the cup with a heart gun without melting. They also stick to the cup and are impossible to remove.

These sleeves were perfect for sublimating my beer can coolers. They are easy to apply & do well with the heat

They melted at 350. Actually, they started melting with just my head gun.

The first one I used bubbled up so I had to take it off and put a new one on it. The second one also got a bubble but I was able to smooth it out before the ends were shrunk too much. Would reorder.

The shrink wrap melted to my sublimation over grrr

These are such poor quality, they completely melted into the cup, had to throw it away.

Se derriten y es casi imposible quitarlo de las superficies