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.

Son fáciles de usar y se encogen rápidamente y firmes para que tu sublimación quede perfecta muy recomendable las volveré a comprar seguramente.

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

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.

Worked perfectly just need to cut the plastic to fit the size of your product

This stuck to the tumbler and won’t come off. The bottom and top edge of the tumbler didn’t have sublimation paper on it, so when I stick the whole assembly in the convection oven, this stuff shrunk more and permanently fixed itself to the parts of the tumbler that were bare.

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

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.

Se derriten y es casi imposible quitarlo de las superficies

I was frustrated at first because the instructions arent very good. After looking at a lot of Youtube videos and ruining 2 tumblers, I figured it out. You cant let the shrink wrap touch the tumbler. I used copier paper to protect the tumbler because the sublimation paper didnt cover the entire mug. Then I put the shrink wrap over the paper and put it in the oven for 6 minutes at 350 degrees.