SILRES® BS 280 CF

1 of 110 products in this brand
SILRES® BS 280 CF is a solvent-free silicone concentrate based on silane or siloxane. Like SILRES® BS 280, it can be diluted with organic solvents. Diluted solutions of SILRES® BS 280 CF serve as high-quality water repellents for impregnating mineral building materials, particularly silicate-free natural stones like limestone or gypsum. It also develops its water-repellent effect through a reaction with atmospheric humidity.

Chemical Family: Silanes, Siloxanes

End Uses: Building Materials

Features: Alkali Resistant, Excellent Penetration, Water Resistance

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Labeling Claims

Applications & Uses

Industrial Additives End Use
Applications
  • Hydrophobic Impregnation
  • Impregnation of New and Existing Buildings
Application Details

SILRES® BS 280 CF is particularly recommended for the conservation of monuments and the restoration of natural stone buildings thanks to its all-round effectiveness and excellent alkali resistance. Good results are also achieved when SILRES® BS 280 CF is used to treat mineral plasters, bricks, sand-lime bricks, aerated concrete and mineral paint.

Dilution

  • SILRES® BS 280 CF should be diluted in a ratio of 1:11 (parts by weight).
  • SILRES® BS 280 CF can be diluted with aliphatic and aromatic hydrocarbons or with anhydrous alcohol. We would especially recommend the use of petroleum hydrocarbons such as white spirit. Alcohols should be used only in special cases, e. g. where contact with materials affected by solvents, such as polystyrene, bitumen etc. cannot be avoided during impregnation.

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Density (at 25°C)1.041 - 1.06 g/cm³DIN 12791
Dynamic Viscosity (at 25°C)7 - 9 mPa·sDIN 51562
Flash Point49°C
Silane Content (Siloxane Content)approx. 100%
Properties
  • Good penetration into building materials
  • Catalyst free
  • Extremely effective with most natural stone
  • Good alkali resistance (alkaline mortar joints)

Packaging & Availability

Country Availability
Regional Availability
  • Africa
  • Asia
  • Europe
  • Latin America
  • North America
  • Oceania

Storage & Handling

Storage Information

Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.