Glue test, Divinycell H80 left & H60 on the right. 0.8 mm plywood. Z-poxy 30 minute. Left overnight to set proporly. To my suprice, the glue joint was quite good... I had tested earlier with the 5 minute verions and that was just a sad sight. With 5 minute epoxy it was just a "glue skin" on the plywood when bending it loose. With the longer hardening time the epoxy seem to creep into the foam making it a better glue joint. Do note, I have not tested with any other glues or kicker - thats up 2 U...