Installing computer cut lettering over corrugated panels with rivets can be tricky and time consuming. Using a foam roller can make the job a lot easier.
First, position the graphic on the panel using tape. Pull the corners taught so that the graphic has no sag. Remove the liner and install the graphic along the high points of the corrugation. Using a firm foam roller, apply the graphic in the low areas between the corrugations leaving about an inch of tented vinyl. Reapply the high-points of the foam roller to be sure it is formed perfectly to the curve of the corrugated panel. Carefully remove the application tape. Apply heat, approximately 175 degrees Fahrenheit, to the tented vinyl and immediately set it firmly with the foam roller.
First, seal one edge of the letter. Then install the rest of the channel. This stabilizes the edge of the letter, lessening the risk of creating a wrinkle in the hot vinyl. The edge of this R is curved, so there is an uneven amount of tension along its edge. Seal this edge first and then work the air out in the other direction. This will lower the risk of distorting the curve of the letter. There is a rivet close to the edge of the letter. Apply heat and without rolling the roller, use the roller to apply pressure directly over the rivet. Then apply the other side of the letter. Installing graphics into the channels of a corrugated panel is different than installing in a channel on a cargo van.
Corrugated panels always have rivets in the deepest part of the channel. The foam roller forms the vinyl to both shapes simultaneously, something that is difficult to achieve with a squeegee or rivet brush. Using a foam roller saves you time and frustration, and gives you the perfect rivet.