If you're constructing your own outdoor pond using a concrete base, find the perfect pond sealant for you at Aquacadabra. A moisture cured polyurethane that can be easily applied to a concrete rendered pond, a pond sealer, or pond paint, creates a deeply bonded, non-porous plastic seal which is highly durable. Browse our collection of Prymax, Gold Label and G4 pond paint and sealant below.