I wouldn't use DAP. Magnepan's current adhesives are the product of a research program to find more durable adhesives that wouldn't delaminate over the years. They were subjected to laboratory life cycle testing, and ten years after they were introduced they haven't seen a single case of delamination. Whereas DAP is just something that some forum participants have tried. Handy for a quick fix, perhaps, but who knows what it will look like ten years from now?