We do not recommend this unless the graphics have application tape on them. GF 790AE has translucent qualities and is a clear calendared vinyl, and as such may show squeegee marks. Regular squeegees may have burrs or uneven edges which may make impressions in the vinyl. Sometimes you “may” be able to heat these impressions out (depending on their severity), but we do not recommend heating the film on a cold glass surface, as cracking may occur. It is best to use a softer edge.