The manufacturer's website also says, "For industrial use only. Not available to consumers at this time." And it's only available in 55-gallon drums, of which you have to buy at least two because it's a two-part formula and has to be mixed before application.
It has low resistance to abrasion, oils, solvents, and chemicals that have low surface tension. Which means that it's not going to help much with gasoline or diesel, fresh asphalt or road tar, spilled margaritas…
Also, it doesn't work well for waterproofing seams. It's a coating, like a high-tech paint, not a joint sealant. Even if you put it on an Argosy, where it would be less obtrusive in appearance, it would not do anything to reduce leaks, just make it easier to keep clean, as long as you only use plain water and never soap to wash it. Soapy water can wash the entire coating right off.
Engineering: Finding complex solutions to simple problems you didn't even know you had.