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12 oz. Insulating Foam Sealant

Product Description

Can only ship via Ground or Priority mail. No express or overnight.

Please note: the sealant pictured may not be the brand that you receive. It is very hard to get black expanding foam so manufacturer's vary.

Insulating Foam Sealant is a polyurethane-based foam sealant designed for use in water features. By expanding to fill gaps and cracks, it works as a water-resistant sealant to help direct the flow of water in waterfall, pond and streambed construction to go where you want it to go, not under or behind rocks. The foam is black to blend in among the stones and shadows. It cures in 8 hours to create a water-shedding bond for stone, rock, masonry, concrete and most other building materials. It's perfect for water features from fountains to koi ponds because it's safe for fish.

  • Water-shedding aquascape, landscape/hardscape foam filler, sealer and adhesive for damp or dry application
  • Adheres to stone and rock and is safe for fish
  • Expands to fill gaps to direct water flow over rocks and secures stones without mortar
  • Black colored foam has all-direction dispensing
  • Repairs cracks and holes in trees
  • Cures in 8 hours; one 12 oz. can is equal to up to 19 tubes of caulk


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