Creto® doesn't act like a coating, but rather reacts with the material to form a bond. By doing this, Creto® becomes a part of the material through the reaction with existing lime and alkaline components. The agent penetrates into the pores and forms crystals until the pores are closed and have permanently bonded with the material. The liquid Creto® creeps into the pores, moves along their edges and forms a vitreous substance based on silicate, without organic components. Once the silicate forms, it expands and displaces the moisture.
When it has crystallised completely, Creto® creates permanent protection against the entrance of water, oil, acids and other harmful substances. Salpetre efflorescence is permanently prevented. The existing lime content is bonded and thus cement, masonry, mortar etc. is therefore maintained in the same conditions as when it was treated.
Creto furthermore prevents the progressive carbonation of cement and thus stops further rusting of the existing steel reinforcement found in the medium. To do this, normal application via spraying, brushing or rolling is required.
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Untreated stone with open pores (capillaries). Dust and dirt which are dissolved in water and bound are flushed into the stone. The result: the stone becomes dirty and frost damage may occur. |
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Treated stone (2KPU, epoxy resin etc.) with closed pores. Moisture is unable to escape. The stone remains wet. The result: the stone rots and will be destroyed with time. |
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Waterproofed stone with damp open pores (capillaries). Moisture can escape but cannot soak into the stone. The result: dirt remains on the surface and is washed away by rain or during cleaning. The stone remains clean and frost damage is a thing of the past. |
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Water can evaporate but cannot soak into the capillaries. The stone “breathes”. |
An untreated sandstone
A sandstone treated with Creto®
Oil droplets on sandstone
The depth of waterproofing
Creto® products are composed of a relatively slow-moving, reactive fluid with a viscosity that is less than water. This means that the waterproofing solution can even penetrate deeply into slightly wet material. For this reason, our products are also suitable for construction in damp regions (especially in maritime areas). Deep penetration is of utmost importance in order to protect the treated material from the effects of weather and ultraviolet radiation.
Permeability
As already mentioned before, Creto® has combined with the material's crystal structure and developed repellent properties. The waterproofing solution simultaneously allows the penetration of water vapour so that the concrete is able to breathe.