Solano Aqua EM 290 - silane/siloxane-based water repellent 

Solano Aqua EM 290 is a silane/siloxane-based water repellent in aqueous emulsion form, developed to protect porous mineral substrates such as concrete, natural stone, tiles, plasters, and painted surfaces. The product deeply penetrates into the pores and capillaries of the surface, forming an invisible hydrophobic barrier that reduces water absorption while retaining the material’s original appearance.
This environmentally friendly, solvent-free emulsion offers high efficiency at low dosage, enhances durability against freeze-thaw damage and efflorescence, and is ideal for professional applications on both normal and reinforced concrete.

Solano Aqua EM 290 is a water-based silane/siloxane emulsion formulated for deep impregnation of porous mineral building materials. Designed for long-lasting water repellency, it is ideal for both normal and reinforced concrete, as well as natural stone, tiles, plaster, and painted surfaces where porosity is present.
This milky-white emulsion penetrates up to ¼ inch into the substrate, depending on porosity and moisture content, creating a transparent barrier that significantly reduces water absorption, prevents freeze-thaw damage, and prolongs surface durability — all without altering the material's appearance.
Thanks to its solvent-free, environmentally friendly composition, Solano Aqua EM 290 provides an effective, safe, and sustainable solution for moisture protection in construction and restoration projects.

KEY FEATURES

• Minimal change in properties across a broad temperature range
• Water-based, solvent-free and environmentally friendly
• Deep penetration into porous substrates (up to ¼ inch)
• Fast water beading and repellency even at low dosage
• Reduces water absorption, efflorescence, and freeze-thaw damage
• Preserves original appearance of treated surfaces
• Suitable for both normal and reinforced concrete
• Compatible with natural stones, plaster, tiles, and painted masonry
• Helps extend the lifetime of construction materials

PROPERTIES 

        These figures are only intended as a guide and should not be used in preparing specifications

Applications

Solano Aqua EM 290 is suitable for use as a penetrating water repellent for a wide range of porous mineral surfaces, including:

• Normal and reinforced concrete
• Natural stone and masonry
• Cement plaster and lime-based surfaces
• Tiles and painted porous facades

Not recommended for non-porous or sealed surfaces.
Recommended usage guidelines:

• Dilution: Dilute with clean water at a ratio of 1:10 to 1:16 depending on substrate porosity and application method
• A preliminary test is advised to confirm compatibility and desired repellency
• Do not apply if rain is expected within 6 hours of treatment
• Surface should be clean, dry, and free of dust, oils, and contaminants