This Rustins Bonda G4 Pond Sealer provides a tough yet durable flexible coating for porous cement rendered surfaces. It can be applied at temperatures as low as 0°C and effectively seals out lime. It is a pigmented product. Used in conjunction with G4 Damp Seal for coloured finishes in pond and floor coating. It is hard-wearing, non-porous, and quick and easy to apply, with good chemical resistance. Suitable for application at high and low temperatures.