I know I'm dredging up an old topic here, but please, forgive me.......
Since last October, I've been slowly but surely, putting together my wedging table. [a little too slowly to please me, but hey, that's life]
I purchased an old Army/Navy surplus table at auction [I so love auctions!] for a paltry $5. It is all steel with a Formica top. To that, I attached 1" x 3" boards around the rim to create the forms for pouring the plaster in. I also caulked all the way around the inside of this form and up the corners. No leaks! Yay!
In light of everything that goes on around here on a daily basis, is it any wonder that I'm still in the pouring stage of construction? Sheesh! And I thought it took forever to build the house!?!?!? Anyhow, so far, I'm up to about 150 pounds of plaster and still not there. I have another 50 pounds standing by, just waiting for me to have the time to mix it up and pour it.
Once this phase is done, I have a nice piece of duck canvas ready and waiting to be stretched and secured. Thanks for the pointer of wetting it first. Silly me, I never would have thought of that!
The total size of the table is 30" x 48" and will serve both as a wedging table and a work surface for me to dive into hand building as well.
I do have a question or two regarding my process thus far. I hope one of you good people can give me a little input on it......
I poured another batch of plaster today and sprayed it down with rubbing alcohol to release the surface tension of the plaster, thereby negating the bubbles trapped within. About an hour later, I noticed not only a few popped bubbles, but that they are also connecting to each other with small cracks. Through 150+ pounds, this has never happened. Should I be concerned? As I said, I still have at least another 50 pounds to go, maybe even more. [I suck at estimating quantities for a project like this. :unsure: ]
I had spoken to a rep from DAP back in October and he stated that for my purposes, there shouldn't be a need for any form of rebar in the slab, so long as I poured it in stages and let each batch cure thoroughly. Now I'm beginning to wonder.
From a weight standpoint, this is one heavy bugger of a wedging table. Even now, I have a hard time getting it to budge so much as a fraction of an inch. I have used it with a small piece of plywood over it just to wedge up some clay for wheel projects and so far, things seem to be just spiffy. I guess what I'm hoping to hear is that it will be just fine, hairline cracks not withstanding. Your thoughts????