Went out to the shop this morning with a fresh rested mind and reassessed the small canned foam I applied last night. Overall, I'd say (though ugly) it did serve to be beneficial, just need greater control over how it expands, slumps and spreads. My theory of applying plastic sheathing as backstops and having someone at the ready to raise, wrap and tape it to the form as the foam swells should provide the control I'm hoping for. Rather than mess about with the smaller cans which only squirt out a string of foam I'll opt to finish this process with the commercial spray foam kit instead. It will give far greater uniform coverage and by applying the sprayer's nozzle and tip through the wire mesh grid it'll better fill the deeper recesses and the plastic sheathing will keep it from slumping out through the grid and force it to expand with greater control.
Now, to get out the razor knife and commence to cut out sheathing wrap sections and tape them initially in place to ready the next step of foaming and sheathe the floor beneath the bear, the stand beneath the bear's feet, and position the mobile upright plastic sheathed backstop panels to confine any overspray that might occur.
Unsure if the weather's going to allow for the foam to be applied today or not. It's below 60 degrees at the moment. Need temps between 65 & 80 degrees F. for optimum foam expansion and cure. If not today (late this afternoon 70's are expected) tomorrow for sure which is predicted to be push'n 80 degrees. I am soooooo anxious to get this phase done and over with, trim any excess, then commence making up clay batches and getting this bear's hide applied.
Recall I mentioned before that the foam should provide good rigidity to the appendages protruding from the main body (front legs outreached). It did, in fact, do precisely as I'd hoped. Just foaming the arm pit cavities last night firmed up and provided a good measure of rigidity to those limbs already. Once all the foaming is applied and cured I'm confident those limbs will not sag under the weight and manipulation of the final clay layer while being applied and detailed. So... although some negative effects were experienced with the can foam last night, overall, sufficient benefit did come about as hoped for all along.
My mind's been in overdrive since this morning's inspection and has convinced itself this process will work better (once experience is acquired) and now is already planning on creating the next of two other life size works I designed years ago for a public art competition.

Providing, of course, this bear gets sold. It's not costing me anything at this point but my time to create it, fortunately, but if it gets sold for the price I told the investor I'd expect for this piece the dust won't settle in the shop once this one's moved out before I begin fabrication of the next sculpture's armature. I can use the mold off this bear's anatomy to create several body bits for the next design which would make that work go much faster. I'm also considering notifying my investor to stop by the shop to see this bear's progress once the clay is applied and some life-like details are sculpted in. At that point I just might be able to impress upon their mind the addition of another bear (smaller & lower to the ground, also with aggressive attitude) to illustrate cause for this bear's defensive posture. In a sense, expand this work to include a small waterfall & pond and both bears challenging for "Fishing Rights". THAT, in my opinion, would surely draw interest from one of the many Casino's in this region. Imagine a wildlife diorama scene like that, with running water over a rocky fall and over the backs of a couple migrating salmon, natural vegetation planted at strategic locations about the fish'n hole... it would be AWESOME!! And the price of this commission would more than triple.
Between now and when I give the investor a status visitation I'll have the vision I just described detailed in a final rendering. There's a casino in Yakima, WA (about 74 miles from here) that just completed a major expansion with a gorgeous front entrance. A scene like I just described would be the cat's ass adornment for their main entrance. It's Native Indian owned, on Native Indian reservation... ALL Native Indians perceive the great bear as a powerful commanding spirit.
I know.... DAMMIT, Frank... shut up and keep focused on what's on yer plate right now. HAHAHA....