Monday, April 23, 2012
Second and Third
Here are pictures of the second and third coats of concrete. After the second coat, I connected the pieces together using expanding foam sealant. I also created some extra holes in the rock for plants. After the foam dried I cut it and put on a first coat of concrete. When the foam dries, it has a hard, shiny outer later. The concrete doesn't stick to it very well, so I would advise cutting all of it off so the concrete can bond better with the soft foam underneath.
I think it came out pretty cool. Once it's all together it should look very nice. Two concerns are that waterfall portion will create a pretty dark cave area that won't get much light. But that may actually be a good thing.
I'll put up a post later listing all of the products I used.