G4 Black Pond Sealer - 5kg (Pond Topcoat)

Effective sealer for concrete ponds, statues, flagstones and waterfalls. G4 is a moisture cured, one component polyurethane product which forms a non-porous, tough, durable but flexible seal on concrete. Prevents lime leaching into your pond from concrete and stops water leaking out. Paint straight onto the concrete, no primer needed.