With its unique thixotropic consistency and excellent water repellent properties on a range of building materials, Dryseal stands out. As opposed to conventional liquid products, Dryseal can be applied in just one working operation to achieve the desired loadings for maximum effectiveness. Dependent on porosity, the effective siloxane ingredient penetrates the substrate within a short time (30 minutes to several hours) where it reacts to become a polymer silicone resin.
The initial white layer disappears completely and, since the effective ingredient is the same as in conventional liquid water repellents, substrates treated with Dryseal remain permeable to water vapour (allow the structure to ‘breathe’). Dryseal has been formulated to penetrate as deeply as possible into porous masonry substrates and this provides optimal protection against the absorption of water and pollutants as well as frost/salt damage.
This effect should not be confused with the "beading" effect often associated with water repellents. The beading effect demonstrates the surface action of a water repellent but may not be significant when assessing a product’s overall performance (resistance to rain water penetration under wind pressure).
Protects houses, bridges and piers.Benefits
- Excellent penetration
- Alkali resistant
- Compatible with damp substrates
- Good coating properties
- Aqueous formulation, low environmental impact
- Thixotropic – multi-coat performance in one application
Dryseal is applied to building materials undiluted in the desired layer thickness using airless spray equipment, a brush or lambskin roller. Dependent on the absorbency of the substrate, application rates of up to 0.3 l/mÇ can be applied in one working operation, even on vertical surfaces/ceilings without a loss of material. A second application can be carried out at any time but is usually not necessary. Resistance to rain is normally achieved within one hour of application.
Full cure up to two weeks depending on climactic conditions. Tools and equipment must be clean and dry prior to use but can be kept wrapped in plastic during short breaks in use. Clean thoroughly after use and before longer storage with water and/or white spirit.Coverage
Dependent on porosity, approx. 0.2 - 0.3L/m˛. The required amount of Dryseal for calculation and tender should be determined on a sufficiently large trial area (1–2 m˛). The effectiveness of the impregnation agent can also be tested on this area.Product Data Sheets
Technical Data Sheet Safety Data Sheet