Satellite City image If all adhesives were equal, it wouldn’t matter which adhesive you use to attach faces to LetterForm® channel letters, but that’s just not the case. Therefore, to facilitate the production of LetterForm channel letters and ensure maximum performance, we and a few select customers have done the research and testing and found that Satellite City adhesives are among the best adhesives available for our Trimless channel letter application. Better still, SDS/AdamsTech is now a distributor for Satellite City adhesives, making it easy for you to purchase the right adhesive at the same time you order LetterForm coil from us.