FallsFoam is the professional-grade expanding polyurethane foam sealant designed specifically for pond and waterfall installations. This black, high-density foam fills gaps and directs water flow exactly where you want it—keeping water on top of your rocks instead of leaking beneath them.
Why Waterfall Foam Matters
A properly sealed waterfall channels all water through your landscape feature, maximizing visual impact and creating the soothing cascade sound you designed for. Without proper sealing, water takes the path of least resistance—often sneaking under rocks or through cracks, wasting your water flow and diminishing the aesthetic effect.
Product Specifications
| Feature | Detail |
|---|---|
| Model | LF1300 |
| Size | 24 oz |
| Color | Black |
| Cell Type | High-density closed cell |
| Shelf Life | 1 year from date of manufacture |
| Application Method | Foam gun (gun not included) |
Built to Last
Closed-cell foam resists foot traffic, water saturation, and deterioration. UV-resistant black color blends into landscape installations while resisting sun damage. The high-density construction means your seals won't compress or degrade—they'll maintain their integrity for years.
Professional Installation
The 24oz foam gun version provides the coverage and control needed for medium to larger waterfall installations. Apply directly into voids and cracks using a compatible foam gun applicator. The foam expands to fill gaps, then hardens for a permanent seal. Uncured foam can be quickly dissolved with Atlantic's Foam Cleaner for equipment cleanup.
Installation Tips
Test water flow before applying foam to identify where water escapes. Apply foam into gaps systematically, allowing time for full cure before running water. The black color ensures sealed areas remain visually inconspicuous in your finished waterfall design.

