Black Expanding Waterfall Foam - 12 oz can

Features

• Used when building waterfalls to direct water flow over rocks instead of into the cracks.

• Used when stacking rock walls to help anchor rocks in place

• Faster and easier than using concrete mortar

When building waterfalls or rock walls in a pond, expanding foam is an extremely useful material to have around.  Found in all our pond kits, this product comes with a straw applicator, which allows you to place foam in very precise spots.  Once the foam shoots out of the can, it expands and slowly hardens, locking everything into place. When building a waterfall, after all the rocks are placed, the foam can be used to fill the small gaps and cracks between rocks to prevent water from falling in behind the rocks. As well, when building up the walls of a pond with rock, this expanding foam can be used to lock each rock in place as the wall is built. What results is a much more solid wall without having to resort to concrete mortar.

If you're building a rock wall larger than 2' however, you may still want to consider concrete mortar since it sets up harder than foam. However, for anything 2' or smaller, this foam is our goto solution.

Yields for 1 Can