 Pur Black NF Expanding Foam is a convenient one-component black colored foam that bonds to most construction materials.
This black foam formulation is closed cell and won't age harden or shrink. It is perfect for filling and sealing holes and voids for outside applications. Each can of Pur Black NF delivers about 750 cubic inches of cured foam; this makes a bead of foam 1/2" in diameter about 575 feet long.
Cured foam resists solvents, water and weathering. Foam which is exposed to direct sunlight should be painted to protect against gradual decomposition.
Applications
- Ponds and Water Gardens
- Waterproofing
- Seals out Pests
- Fills and Seals Voids
Pur Black NF expands to fill voids between the rocks and liner, diverting water over the top of the stones. It simplifies waterfall construction and is easier to use than mortar. The foam will not crack in freezing temperatures. The black color of the foam will blend into the waterfall setting by looking like a dark part of stone or a shadow.
Pur Black NF will not harm fish. It will be cured in 40 minutes and can be easily removed if necessary.
Pur Black NF will gradually expand after dispensing. Be careful not to over apply. Excessive foam, once cured, can be peeled away. Pur Black NF is designed to divert 99% of moving water. This product will not provide a 100% water tight seal.
Please Note: Due to the expansion properties in this product, the only shipping method that can be used is UPS Ground.
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