NO Brands
I've used so many types. The only one I purchased that was around $700 was a Stih brand. Thinking that paying more you get more. Not True! I ended up giving it back to rep. Did three installs and ink was coming off on my hands as we were installing them! Anyway, no brands have worked very well. The only time I add protection to them is for the vehicles, which I add optical clear lotion. Just recently took off perf from my store front that has been up since Jan 08 and still looked great! To install bigger graphics.
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