Silicone water repellent

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Silway 744
 
 
SILICONE WATER REPELLENT SILWAY744(Silane Siloxane Emulsion)
 
Masonry Surface Waterproofing with Silway 744: Silane-Siloxane Based Water-Thinnable, Solventless Emulsion for Durable Protection
Dilute solutions of Silway 744 serve as highquality, general-purpose water repellents for impregnating and priming mineral surfaces.
Moreover Silway 744 can be used for the mass treatment of non-load bearing concrete products.
 
 
Technical Index
Property
Specification
Appearance
Milky, white
Viscosity (cSt, 25℃)
Approx. 12
Active Content
40%
Density
0.95g/cm3
pH
Approx. 8
 
 
Features
  • Silane/Siloxane Emulsion has Good depth of penetration
  • Silane/Siloxane Emulsion is Resistance to alkalis
  • Silane/Siloxane Emulsion provides good adhesion for paints
  • Silane/Siloxane Emulsion is water based and environmentally friendly chemical
  • Silane/Siloxane Emulsion is stable in storage, even when diluted
 
Application
  • Silway 744 is an excellent silane/siloxane emulsion water repellent for many absorbent mineral substrates, such as bricks, sand-lime brick, natural sandstone and mineral plasters. It is not so suitable for less absorbent, dense natural stone, especially limestone, marble and reinforced concrete for bridges and roads.
  • Owing to its aqueous consistency and storage stability when diluted, Silway 744 Silane/Siloxane Emulsion water repellent is ideal for inplant impregnation of building materials made of clay, aerated concrete, sand-lime brick, fibrous cement, mineral fibers and lightweight aggregate.
  • Silway 744 Silane/Siloxane Emulsion water repellent may also serve as a water-repellent primer for emulsion paints and plasters, silicone resin emulsion paints and silicone resin plasters. Moreover Silway 744 Silane/Siloxane Emulsion water repellent can be used for the mass treatment of non-load bearing concrete products.
 
Usage
  • Tap water is suitable for preparing solutions of Silway 744 silicone water repellent for use as facade water repellent primer. We recommend an active substance content of 5-10% (dilute the product in the ratio 1:5 to 1:11), the exact figure depending on how absorbent the substrate is.
  • Apply the ready-to-use solution in the usual way; flooding is the preferred way. Two"wet on wet"coats are needed to ensure complete coverage. Owing to the content of wetting agent in Silway 744, reimpregnation at a later date does not present any difficulties.
  • If it starts raining, stop treatment and cover the freshly impregnated areas.
  • For the mass impregnation of concrete products an active agent concentration of 10 % per weight is recommended. The dosage of the diluted product can be related to the overall mass or the amount of binding agents of the concrete product. If related to overall mass,a dosage between 0.1 to 1.0% of the 10% dilution of Silway 744 silicone water repellent is recommended. If related to the amount of binding agent, a dosage between 1.0 to 4.0% of the 10% dilution of Silway 744 silicone water repellent is recommended. In order to keep the watercement-ratio on a constant level, reduce the amount of mixing water by the amount of water added with the diluted emulsion.
  • Even though an evaluation exhibited no negative influence of Silway 744 silicone water repellent on the mechanical properties of selected concrete recipes, an independent evaluation of the mechanical properties is recommended.
Packing
200L drums or 1000L IBC Drums
 
Storage
  • Avoid children coming into contact with this product
  • Being storage in closed containers
  • Avoid the eyes or ingested
 
Shelf Life
12 months