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Sikagard®-700 S

Siloxane based water repellent impregnation

Sikagard®-700 S is a one part water repellent impregnation for absorbent cementitious substrates. It penetrates well into the open pores of the substrate, providing durable water repellency, while still allowing water vapour diffusion in both directions.
Sikagard®-700 S complies with the requirements of EN 1504-2 for hydrophobic Impregnation (penetration depth class I). Suitable for use in hot and tropical climatic conditions.

  • Reduction of capillary water absorption
  • Reduces efflorescence
  • Reduces dirt penetration into the pores
  • Improves thermal insulation
  • Can be overcoated with solvent based and dispersion coatings
  • Higher durability and resistance than conventional silicone based treatments
  • Does usually not change the appearance of the substrate
  • Does not act as a vapour barrier
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Usage

Sikagard®-700 S is used as water repellent and colourless protective surface treatment on absorbent exposed materials such as concrete, cementitious rendering, concrete tiles, fibre cement, brickwork (clay and lime sand, non-vitrified), natural stone.
Sikagard®-700 S can also be used as hydrophobic primer under solvent based or emulsion protective coating. Sikagard®-700 S is used as water-repellent impregnation (hydrophobic treatment) for absorbent substrates such as concrete in civil engineering or building concrete structures.
  • Suitable for protection against ingress (Principle 1, method 1.1 of EN 1504-9)
  • Suitable for moisture control (Principle 2, method 2.1 of EN 1504-9)
  • Suitable for increasing the resistivity (Principle 8, method 8.1 of EN 1504-9)
 

Advantages

  • Reduction of capillary water absorption
  • Reduces efflorescence
  • Reduces dirt penetration into the pores
  • Improves thermal insulation
  • Can be overcoated with solvent based and dispersion coatings
  • Higher durability and resistance than conventional silicone based treatments
  • Does usually not change the appearance of the substrate
  • Does not act as a vapour barrier

Packaging

20 L cans and 200 L drums

Colour

Colourless liquid

Product Details

Sustainability / Certifications / Approvals

SUSTAINABILITY

Sikagard®-700 S is certified according "Low Emitting Materials as per Al Sa'fat - Dubai Green Building Evaluation System" by Dubai Central Laboratory (DCL) certificate No. CL17020432

APPROVALS / CERTIFICATES

  • Tested by LPM - qualification test to SIA 162 / 5, Report A-13719-2 dated April 1993 - Water absorption, penetration depth, alkali resistance, water vapour diffusion.
  • Follows the requirements of EN 1504-2 for hydrophobic impregnation (class I)
Product Information

Composition

Silanes / Siloxanes blend in organic solvent

Shelf life

12 months from date of production

Storage conditions

Store in original, unopened, sealed and undamaged packaging in dry condition at temperatures between +5 °C and +30 °C. Protect from moisture and direct sunlight.

Density

~0.800 kg/l (at +20 °C)

Flash Point

Closed cup: ~30 °C (~86 °F)
System information

System Structure

1 – 2 coats of Sikagard®-700 S

Application

Application Information

Ambient Air Temperature

+5 °C min. / +30 °C max.

Substrate Temperature

+5 °C min. / +30 °C max.

Substrate Moisture Content

< 5 - 6 % when measured with Tramex method

Waiting Time / Overcoating

Can be overcoated with water/solvent based polymer paints - contact the proposed paint manufacturer for details.
When overcoating with Sikagard® or solvent based coating, wait at least 5 hours after the hydrophobic impregnation.

Curing Treatment

Sikagard®-700 S does not require any special curing but must be protected from rain for at least 3 hours at +20 °C.
Consumption

Consumption

~0.300 – 0.500 kg/m2 (0.375 – 0.625 l/m2) per coat for normally absorbent substrate.
In order to ensure durability, a minimum of 2 coats must be applied.
Application steps

MIXING

Sikagard®-700 S is supplied ready for use and should not be thinned.

APPLICATION

Sikagard®-700 S is applied by using low pressure spray, brush or roller, working from bottom up taking care not to let the product run. Apply subsequent coats “wet on wet”.

CLEANING OF EQUIPMENT

Clean all tools and application equipment with Colma Cleaner immediately after use.
Hardened / cured material can only be mechanically removed.

 

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