When we use the 3203X on coroplast we don't laminate it. Even a 4x8 is easy with the aluminum Big Squeegee. We use the 3203X laminated on ACM
signs. Everybody says to use cast, but we don't see the value in it. The 3203X lasts 5-6 years before you see edge peeling or surface cracking, and by that time the ink has already begun to fade, so I cannot see any point in having vinyl that still has 3 years life left if the ink is already fading.
This way of thinking does not work if you use the wrong calendared vinyl. We got messed over by the 3M IJ40 and IJ35 a few years back. They are supposed to be 7 and 5 year vinyls, but we had adhesive failures after only 18 months to two years and had to re-do a lot of
signs. We don't experience that with the 3203X.