heat press marks

[smee]

I pressed them three days ago and they are a 'cool breathe' polyester polo. 

You may have used too much pressure, when I do 100% polyester I don't use very much pressure at all.

 
How do you get the vinyl to stick?

[HugoV]

on you heat press there should be a way to adjust the pressure the platen presses the shirt, lower that a little bit and that would most likely help with the marks

[fivestar]

I pressed them three days ago and they are a 'cool breathe' polyester polo. 

You may have used too much pressure, when I do 100% polyester I don't use very much pressure at all.

 
How do you get the vinyl to stick?

It sticks.....You don't need alot of pressure for polyester.

[smee]

Does anyone know if the marks are be permanent or will they eventually disappear?

[fivestar]

It's hard to tell for me without physically seeing them.

[midwaste]

If they are still noticeable 3 days later on poly, they are probably permanent.  The poly melted, leaving the mark.  I try to steer away from dri-weave/wick, etc as much as possible, especially with heatpressing vinyl.

[smee]

Okay, thanks for all your help and advice I think I have to put this one down to a learning experience. I'm going to try washing them to see if that helps, luckily I did them for a friend and not a paying job...that still doesn't really make me feel any better though.