Just checking in to see if some of you have tried the newer polyurethane glues when constructing your cabinets out of MDF? The polyurethane glue comes under the Elmer's name and also there are other products such as "Gorilla Glue" - as it's sold at Home Depot. I've used the Poly glue before when I was doing some other wood repairs. Not much glue is needed because it does expand a little as it "cures" so that the joints get properly filled. I intend to try it when I get into my sub project in the next week or so. I'll provide updates on my results. But, I do think this stuff looks promising.