GREAT STUFF™ Pond & Stone is the easy way to create beautiful aquascapes and hardscapes. By expanding to fill gaps and cracks, our foam filler helps direct the flow of water in waterfall, pond and streambed construction to the exterior of the water feature, instead of between or behind rocks. The foam’s black color means it’s easily hidden among the stones and shadows. It creates a water-resistant, water-shedding bond to stone, rock, masonry, concrete and most other building materials. You can construct the stunning water features you’ve always envisioned, without harming plants or fish.
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Landscape/hardscape foam filler, sealer and adhesive
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Damp and dry application
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Adheres to stone and rock
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Water-resistant
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Fish and plant safe
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Expands to fill gaps to direct water flow over rocks
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Secures stones without mortar
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Repairs cracks and holes in trees
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Cures in 8 hours
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Black colored foam
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One 12 oz. can = up to 19 tubes of caulk
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One 16 oz. can = up to 24 tubes of caulk
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All direction dispensing
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UL Classified
Differences Between Latex and Polyurethane Foam Sealant
There are two key differences between latex foam and GREAT STUFF™ polyurethane foam sealant:
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Latex foams are typically "open cell" and, as a result, can take on water. In fact, the same properties that allow you to wash latex foam off your hands with water also mean that the cured foam can absorb water. This can cause wood rot or deterioration in areas where wet latex foam is next to wood, such as a window frame. In contrast, GREAT STUFF™ is a closed-cell foam. It forms a water-resistant outer skin when cured.
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Latex foam does not expand. GREAT STUFF™ expands to thoroughly fill all voids and cavities making it an ideal air sealant.
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