Roofing Putty is a plastic bitumen paste, highly modified with synthetic rubber. It contains reinforcing fibres and chemical additives that enable it to be applied to wet substrates, during rainfall, adheres even under water and can be used in contact with polystyrene foam. The coating formed from Roofing Putty is extremely elastic, capable of levelling out even significant movements of the substrate and is waterproof. It is resistant to atmospheric conditions, weak acids and alkalis and aggressive substances contained in atmospheric soil vapours. No priming required.