| Product description: SILRES® BS OH 100 is a solventless, ready-to-use product for the consolidation of construction materials. Special features: - one-pack system - easy processing
- low-molecular weight - optimum penetration
- tack-free drying - therefore no dirt attraction
- no by-products that are damaging to the building material
- the binder formed is mineral - therefore resembling the building material
- the binder formed is acid-resistant-therefore resistant to rainwater
- pores are not sealed - therefore the treated building material maintains its water vapour permeability
Mode of action SILRES® BS OH 100 is based on ethyl silicate. When applied, it penetrates through the capillaries deep into the construction material. The neutral catalyst promotes the reaction between ethyl silicate and water from atmospheric humidity or the moisture in the capillary pores. A glass-like silica gel binder (SiO2 .aq.) is formed. The ethanol by product evaporates. Under standard conditions (20°C / 50% r. h. ), final hardness is reached after two weeks, i. e. when most of the ethyl silicate has been converted to silica gel. The product does not contain any hydrophobic additives such as silanes or siloxanes. Before the reaction is complete, the treated surface may show slight beading, though this does not mean that it is water repellent.Application: The main application of the product is to restore weather-damaged natural stone, stucco or frescos. It may also be used to treat other construction materials such as brick or terracotta. Any absorbent mineral construction material can be treated with SILRES® BS OH 100. By saturation with the product, their original strength and porosity can be practically restored. Information provided by Wacker Chemie AG. |
