Product Data Sheet Show all documents

Sikagard®-705 L

Silane based reactive water repellent impregnation

Sikagard®-705 L is a one-component low viscosity, solvent free, reactive impregnation for concrete and cementitious substrates based on silane with 99% active ingredient. Sikagard®-705 L complies with the highest requirements of EN 1504-2 for hydrophobic Impregnation (penetration depth class II & resistance to freeze and thaw salt stresses).

  • Excellent penetration (~100% active content)
  • Economic and easy to use
  • Reduces capillary water absorption, protection against driving rain and splashing on vertical areas
  • Reduction of absorption of aggressive or deleterious agents dissolved in water (i.e. de-icing salts or chloride from marine environment)
  • No change in water vapour permeability
  • Long term efficiency, deep penetration
  • Increases the resistance of concrete to freeze and thaw cycles and de-icing salts
  • Resistant to sea water
  • Low VOC content
  • Ready to use
Product Data Sheet Show all documents

Usage

Sikagard®-705 L is used as water-repellent impregnation (hydrophobic treatment) for absorbent substrates such as concrete in civil engineering or building concrete structures subjected to heavy stress due to freeze and thaw cycles and de-icing salts and chloride attack in marine environment, etc…
  • 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

  • Excellent penetration (~100% active content)
  • Economic and easy to use
  • Reduces capillary water absorption, protection against driving rain and splashing on vertical areas
  • Reduction of absorption of aggressive or deleterious agents dissolved in water (i.e. de-icing salts or chloride from marine environment)
  • No change in water vapour permeability
  • Long term efficiency, deep penetration
  • Increases the resistance of concrete to freeze and thaw cycles and de-icing salts
  • Resistant to sea water
  • Low VOC content
  • Ready to use

Packaging

18 kg pail and 170 kg drum

Colour

Water like liquid, colourless

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • Conforms to the requirements of LPM: Suitability test to SIA 162/5, Report No. 1-21’699-6.
  • Conforms to the requirement of the “Bro 2002” Swedish National Road Administration (SNRA) publication No. VV2002:47 Report ref: F507580 B rev.
  • Evaluation of Conformity According to the Dutch RWS Directive (11-01-2011) and the European Standard EN 1504-2 – Sika MPL; test report no. 1203052 dated 09.04.2012.
  • Conforms to the requirements of the EN 1504-2 class II – Polymer Institute report P 5634-E dated 5th April 2007.
  • Active content - Polymer Institute Ref P5634-E dated 27th June 2008.
Product Information

Chemical base

Silane (99% active ingredient)

Shelf life

12 months from date of production

Storage conditions

Stored in unopened, undamaged and original sealed packaging in dry and cool conditions. Protect from moisture.

Density

~ 0.900 kg/l (at +25 °C)

Volatile organic compound (VOC) content

~100 g/l (~1% w/w)

Viscosity

~9 mm²/s (at 25 °C)
System information

System Structure

2–3 coats applied "wet on wet”
Technical Information

Water Absorption

<7.5%

(EN 13580)

Resistance to Alkalinity

< 10%

(EN 13580)

Freeze Thaw De-Icing Salt Resistance

Comply

(EN 13581)

Penetration Depth

Class II: ≥ 10 mm

Test performed on concrete with a W/C = 0.70

Drying Rate Coefficient

Class I: > 30%

(EN 13579)

Application

Application Information

Ambient Air Temperature

+5 °C min. / +40 °C max.

Substrate Temperature

+5 °C min. / +35 °C max.

Waiting Time / Overcoating

Can be overcoated with water and solvent based polymer paint - contact the proposed paint manufacturer for recommendations.

Sikagard®-705 L can be used as a water repellent primer under many Sikagard® protective coatings. Penetration of water is thus prevented at possible weak spots or in the event of damage to the top coat and the risk of consequential damages such as paint flaking can be reduced.

Waiting time: minimum 5 hours, maximum 1 week.

CURING TREATMENT

Sikagard®-705 L does not require any special curing but must be protected from rain for at least 3 hours at +20 °C.
Consumption

Consumption

Dependent on absorbency of the substrate as well as the required penetration depth: ~ 150 g/m² per coat.
Application steps

MIXING

Sikagard®-705 L is supplied ready for use and must not be diluted.

APPLICATION

Sikagard®-705 L is applied using a low-pressure spray, brush or roller, in a single pass from bottom up taking care not to let the product run. Apply subsequent coats wet on wet. Avoid ponding on the surface.

CLEANING OF TOOLS

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

 

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