john73738;3981990; said:
One of best parts of PC is it's flexability but my tank is not going to be moving so that should not be a problen with a sturdy stand. As stated I am not knocking PC, but for me I am going with epoxy.
Yeah, I'm not knocking PC either. Hope to find an excuse to use it myself someday.
As far as flexibility, marine epoxy is more than flexible enough for any plywood tank structure. Somehow or another epoxy has gotten the reputation on various fish forums as being brittle but that has more to do with one specific product and polyester than it does with regular epoxy resin.
Some guy where I grew up used to raise some sort of aquatic pond plant. He kept them in his garage during the winter. He had huge 4x8x42" plywood ponds all plumbed together. No external framing, just plywood sheets screwed together. No windows and sealed with epoxy. Water height did not come up to the top but I'd say it was close to 36" deep. Sides bowed out like crazy but they held for years and he later sold all of them to somebody in a nearby town and they held water for years as well.
For the record I would not recommend this nor would I do it myself but it's hard to overlook the results this guy had with the four or five plywood ponds that filled his garage.
There are epoxy formulations that are not this flexible but most of the regular epoxy resins discussed on this forum are flexible enough. As flexible as PC? No, but flexible enough for what we're doing.
