Black Waterfall Foam 16 oz.
- Black waterfall foam sealant for all types of pond and water feature construction needs
- Multi-purpose foam
- Durable, flexible
- Black/Charcoal color when cured
- Use to fill voids behind waterfall boulders
- Use to fill voids behind stream boulders
- Use to stabilize rock walls, submerged, and non-submerged
- Use to "glue" concrete retaining wall caps to concrete wall blocks
- Bonds boulders to boulders
- Bonds boulders to all types of liners - rubber, concrete, polyurea
- 60% expansion - fill voids with 40% foam, the foam will expand to fill the remaining 60% void
- Dries tack-free in 20 minutes - cures in 24 hours
- Density: 1.4-1.6 lbs/cu. ft.
- Compression: 10-14 PSI