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Master Bond adhesives
Wacker Silres® BS 3003 Silicone Masonry Water Repellent
Categories: Polymer; Thermoset; Silicone

Material Notes: SILRES® BS 3003 is a water-thinnable, solventless emulsion, based on a mixture of silane and siloxane. Dilute solutions of SILRES® BS 3003 serve as high quality, general-purpose water repellents for impregnating and priming mineral surfaces. Moreover SILRES® BS 3003 can be used for the mass treatment of non-load bearing concrete products.

Properties: SILRES® BS 3003 emulsion contains a stabilized mixture of silanes and siloxanes that are susceptible to hydrolysis. Hydrolysis occurs only after application to the substrate, which breaks the emulsion. Alcohol is released and the emulsion is converted into a silicone resin water repellent. SILRES® BS 3003 reduces the capillary absorption of the building which it has penetrated, but does not clog pores or capillaries. There is therefore little or no impairment of the building material´s ability to "breathe".

Special features: SILRES® BS 3003 shows the following special features:

  • good depth of penetration
  • resistance to alkalis
  • rapid development of water repellency
  • provides good adhesion for paints
  • water based and environmentally friendly
  • stable in storage, even when diluted

    Application: Dilute SILRES® BS 3003 is an excellent 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, SILRES® BS 3003 is ideal for inplant impregnation of building materials made of clay, aerated concrete, sand-lime brick, fibrous cement, mineral fibers and lightweight aggregate. SILRES® BS 3003 may also serve as a water-repellent primer for emulsion paints and plasters, silicone resin emulsion paints and silicone resin plasters. Moreover SILRES® BS 3003 can be used for the mass treatment of non-load bearing concrete products.

    Information provided by Wacker Chemie AG.

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Plastic

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