
Effective water repellency, long-term durability
For providing water repellency in constructions on site, and producing water repellent building materials TERRA offers a specific range of process aids.
TERRASIL® WR line Silicone Emulsion and TERRASIL® SILANE line Silane are ideal for impregnation applications, as well as for formulating construction materials such as paints, primers and coatings, RTV silicone sealants, gypsum board, tile, brick, briquette, concrete block, and water-repellent construction chemicals used for mineral surfaces, and glass, wood and composites.
While providing an effective insulation against water and its damaging effects, they provide at the same time a long-term protection against most challenging conditions such as weathering, temprerature extremes, salts, acids, alkalis and other corrosive substances, UV and radiation.

Improve your manufacturing quality, secure your business
We are ready to support you in providing effective protection against water and improving the quality of your productions in your building material manufacturing and construction site applications:
> Impregnating Agent & Additive For Water Repellency
> Silicone Emulsion for Insulation
> Silane as Coupling Agent, Adhesion Promoter & Performance Enhancer
> Silica
For further information about our solutions used for Insulation for Waterproofing in Construction, please contact us. Our experts will assist you in making the right choices to secure the product properties you seek.
PRODUCT RECOMMENDATIONS
> TERRASIL® WR 2150
Functional Silicone Fluid Emulsion
In the manufacture of glass wool and rock wool thermal insulation mats or low-density bulk insulation materials such as perlite and vermiculite, to provide water impermeability to the product and increase its resistance to moisture formation and harsh weather conditions. Water-based, highly concentrated, high effectiveness even when diluted with a high amount of water.
> TERRASIL® WR 2165
Functional Silicone Fluid Emulsion
In the manufacture of glass wool and rock wool thermal insulation mats or low-density bulk insulation materials such as perlite and vermiculite, to provide water impermeability to the product and increase its resistance to moisture formation and harsh weather conditions. Water-based, highly concentrated, high effectiveness even when diluted with a high amount of water.
> TERRASIL® WR 1054
Silikon Resin Emulsion
Water-dilutable solventless emulsion of a silicone resin used as binder in the production of silicone resin emulsion paints and plasters. The product formulations are characterized by high permeability to water vapor and CO2, low water absorption, low soiling tendency, a mineral appearance and long life.
> TERRASIL® WR 1042
Silicone Fluid Emulsion
Aqueous emulsion of a reactive polydimethylsiloxane. It is used to impart water-repellency to glass wool mat or rock wool mat bound with phenolic resin or to low-density bulk goods such as perlite or vermiculite.
> TERRASIL® WR 1600
Potassium Methyl Siliconate
CAS No. 31795-24-1
Aqueous solution of potassium methyl siliconate. It is used in diluted form for the hydrophobic impregnation of mineral construction materials to make them water-repellent.
> TERRASIL® WR 4500
Silicone Resin Emulsion
Water-dilutable solventless emulsion of a silicone resin used as a binder in the production of silicone resin emulsion paints and plasters.
> TERRASIL® WR 2900
Silane-Siloxane Mixture
Solventless silicone concentrate that is based on a mixture of silane and siloxane. It is dilutable with organic solvents.
> TERRASIL® WR 6930
Silane-Siloxane Mixture
Solventless silicone concentrate that is based on a mixture of silane and siloxane. It is dilutable with organic solvents.
> TERRASIL® PE 5100 WR
Silicone Resin Emulsion
Emulsion of a silicone resin used as impregnating agent to make mineral based substrates water repellent. It provides soft touch effect and well-balanced brillance on the surface without oiling.
> TERRASIL® PE 6100 WR
Silicone Resin Emulsion
Emulsion of a silicone resin used as impregnating agent to make mineral based substrates water repellent. It provides soft touch effect and well-balanced brillance on the surface without oiling.
> TERRASIL® PE 6300 WR
Silicone Resin Emulsion
Emulsion of silicone resins and functional silicone fluids. Ideal for formulating water repellent auto care products such as Wash-and-Wax and Wash-and-Go. It provides both brillance and water repellency with long-term durability.
> TERRASIL® PE 8100 WR
Silicone Resin Emulsion
Emulsion of a silicone resin used as impregnating agent to make mineral based substrates water repellent. It provides soft touch effect and well-balanced brillance on the surface without oiling.
> TERRASIL® PE 9100 WR SLX
Silicone Resin Emulsion
Emulsion of a silicone resin used as impregnating agent to make mineral based substrates water repellent. It provides soft touch effect, color intensification and brillance on the surface without oiling.
> TERRAFLUID® MHS 1020
Methylhydrogensiloxane Silicone Fluid
CAS No. 63148-57-2
Functional silicone fluid with high thermal conductivity and pressure resistance, 20-50 cSt viscosity. Ideal for the production of water-resistant gypsum board, dry chemical fire extinguishing powder and silicone emulsion for water repellency.
> TERRAFLUID® MHS 9400
Polymethylhydrogensiloxane Silicone Fluid
CAS No. 63148-57-2
Functional silicone fluid with high thermal conductivity and pressure resistance, 20-25 cSt viscosity. Ideal for the production of water-resistant gypsum board, dry chemical fire extinguishing powder and silicone emulsion for water repellency.
> TERRASIL® 5902 SILANE
N-octyltriethoxysilane
CAS No. 2943-75-1
Triethoxy(octyl)silane. Additive that provides water repellency, water impermeability, binding and adhesion on mineral-based and inorganic surfaces.
AEROSIL® R 972
Fumed Silica
Hydrophobic fumed silica modified with DDS (Dimethyldichlorosilane) with a specific surface area of 90-130m²/g. It is ideal for use in coatings, adhesives, sealants silicone sealants, silicone rubber, silicone elastomers, printing inks, cosmetics and unsaturated polyester.
> HJSIL® R272
Fumed Silica
Hydrophobic fumed silica modified with DDS (Dimethyldichlorosilane) with a specific surface area of 90-130m²/g. It is ideal for use in coatings, adhesives, sealants silicone sealants, silicone rubber, silicone elastomers, printing inks, cosmetics and unsaturated polyester.
> TERRASIL® 1100 SILICA
Hydrophobic Precipitated Silica
CAS No. 67762-90-7
> TERRASIL® 1300 SILICA
Hydrophobic Precipitated Silica
CAS No. 67762-90-7
> TERRASIL® 3200 SILICA
Hydrophobic Precipitated Silica
CAS No. 112926-00-8
> HDK® H15
Hydrophobic Pyrogenic Silica
CAS No. 68611-44-9
> HDK® H17
Hydrophobic Pyrogenic Silica
CAS No. 67762-90-7
> HDK® H18
Hydrophobic Pyrogenic Silica
CAS No. 67762-90-7
APPLICATIONS
> Masonry
> Water-repellent Building Materials
> Composites
> Construction Chemicals
> Dry Mortars & Plasters
> Ready Mix Concrete & Ready Mix Plaster
> Impregnation Agents for Waterproofing
> Paints, Primers and Coatings
> Glasswool Insulation Materials
> Rockwool Insulation Materials
> Mineral Insulation Materials
> Sealants & Adhesives
> RTV Silicone Sealant
> Water-resistant Gypsum Board
> GFRC Block
> Precast Concrete
> Surface Treatment for Waterproofing
> Surface Care Solutions
> Glass Fiber Surface Treatment
> Fiberglass Mesh
> Waterproofing Solutions & Concrete Repair