maybe someone has the answer. This morning I mixed up some Dap Weldwood Plastic Resin Glue to glue some scraps together and attempt to turn a shallow bowl. Anyway, I couldn't get the powder to dissolve in the water. I always mix by weight following the 5 glue/3 parts water spec'd on the label, but this glue was decidedly lumpy, and no amount of mixing would solve it. This container is fresh (I think) I bought it from Amazon last March, and it gets stored with my reloading supplies (dehumidified cabinet). I haven't learned the secret for deciphering the code dates on these containers, and on this one the code date is only 1/2 there anyway, but I usually buy from the 'zon since it looks like their stuff is the freshest available. Think it's bad....or should I do something different in the mixing process. BTW, I've used a fair amount of this stuff, and have never had this problem before.