Black PU foam

Black exterior filler-adhesive

Polyurethane sealant ideal for ponds and waterfalls.
Fish and plant safe.
Won't discolour like other foam! Blends into shadows.
Superior adhesive for landscaping projects.
Expands and fills voids. Fill knot holes in trees to seal out water and pests.
Direct water flow in and around water gardens – won’t harm plants.
Repair rock walls and replaces loose or damaged mortar.
Product has a dark grey colour after curing.