Glue test, Divinycell H80 left & H60 on the right. 0.8 mm plywood. Great Planes Pro CA kicker on foam (no glue on foam). Zap CA+ green on plywood. Will propobly not work that good as the CA on bigger surfaces has time to sink into the plywood a little too much. Maybee could work better if an slow version of the CA is used. Left overnight to set proporly (one wouldnt crash test a sponson after just a couple of minutes, right?) - it sat good after a couple of minutes though.