those iron on labels
 

You folks are full of knowledge and I really have had great luck with getting what I need

I learned to get that iron on paper to print labels from my computer to iron on my quilts. works great

Have any of you ever tried to iron this on to costume satin?

Can't use as hot of an iron so I am wondering if it will work

Probably not. Its the heat that makes it work.

i can only suggest trying it on a scrap piece of fabric

you are probably right - trying it on a scrap will probably be best

Put something between the fabric and your iron in case of meltdown.

Check the fabric content...polyester...you can probably use the labels (make sure to use a teflon pressing sheet to protect the fabric) with a wool setting.

Acrylic...probably not...has a low melting point.
Marge