MasterProtect® H 1150
Silane based thixotropic paste hydrophobic impregnant.
Material Description
MasterProtect H 1150 is an aqueous cream of
octyltriethylsilane, a water-repelling impregnant for all types
of cement-based materials.
Areas of Application
MasterProtect H 1150 is recommended for impregnating
reinforced concrete used in building bridges, roads, and
buildings. It can also be used as a primer for anticarbonation paints such as MasterProtect 150 and 160.
MasterProtect H 1150 may be used on any concrete
substrate that has been treated previously with
alkoxysilane-based impregnating agents.
MasterProtect H 1150 can be applied in just one coat of
the desired thickness (at the very most, two coats). The
silane active ingredient penetrates the substrate within 30
minutes to several hours, the exact time depending on the
porosity and thus quality of the concrete. On reaction with
the substrate, it releases ethanol and is converted into a
polymeric silicon resin. A creamy layer forms initially, but
this then disappears completely
MasterProtect H 1150 does not block the pores or
capillaries to water vapour and thus allows the structure
to breathe but provides an effective barrier to liquid water.
Characteristics and Benefits
- Forms a layer in the concrete matrix – stops water
ingress but allows the structure to breathe. - Forms a barrier to dissolved salts – prevents damage by salt spray.
- Forms a barrier to carbonated waters (acid rain) – protection against damage from carbonation.
- Dramatic reduction in water absorption – reduction in potential corrosion rate of reinforcing steel.
- Primer for anti-carbonation paints – provides good adhesion for subsequent paint coatings.
- Low volatility – applies as a crème and thus suitable for application in exposed situations.
- Thixotropic – may be applied without loss of material in windy conditions.
Product specification sheet
MasterProtect® H 1150 product specification sheet opens in a new windowManufacturer
MB Solutions

