A Digital Printing Network
Arlon 8000 DPF - it will stick to just about anything.
I have used Arlon 8000 DPF on a rough surface, like that of many coolers, and it works very well.
Oracal HT high tack is made specifically for such applications. Comes in both calandered and cast. Recommend cast for longevity but calandered is fine for most applications which are relatively flat. a little pricey but simply bid it accordingly. we wrap a lot of vehicles and do not use oracal wrap material because of it's higher than normal initial adhesion. If their wrap material is that sticky you can imagine what their hightack must be like.