Product Data Sheet Safety 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 technology 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-thaw cycles and chloride ion penetration) and is tested in accordance with NCRHP 224 Series II & IV.

  • Excellent penetration (~100% active content).
  • Economical 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).
  • Non vapor barrier.
  • Long term efficiency, deep penetration.
  • Increases the resistance of concrete to freeze and thaw cycles and de-icing salts.
  • Low VOC content.
  • Resistant to sea water.
  • Ready and easy to use
Product Data Sheet Safety Data Sheet Show all documents

Usage

Sikagard®-705 L is used as water-repellent penetrating sealer (hydrophobic treatment) for absorbent substrates such as:
  • Parking decks
  • Bridge decks
  • Concrete highway surfaces
  • Ramps and Barriers
  • Cooling Towers
  • Stadiums
  • Natural stone substrates
  • Many other traffic bearing/reinforced concrete substrates and structures
 

Advantages

  • Excellent penetration (~100% active content).
  • Economical 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).
  • Non vapor barrier.
  • Long term efficiency, deep penetration.
  • Increases the resistance of concrete to freeze and thaw cycles and de-icing salts.
  • Low VOC content.
  • Resistant to sea water.
  • Ready and easy to use

Packaging

5 gal. (19 kg ) pail, 55 gal. (180 kg) drum

Color

Water like liquid, colorless.

Product Details

Product Information

Chemical Base

Alkoxy silanes (~100 % active ingredient)

Shelf Life

2 years from date of production if stored in unopened, undamaged and original sealed packaging

Storage Conditions

Store in dry and cool conditions. Protect from moisture.

Flash Point

104 °F (40 °C)

Active Content

~100 %

Viscosity

~9 mm²/s (at 25 °C)

Product Declaration

Alberta DOT Type 1c

Water Repellence

85.3%

Alkali Resistance

84.8%

Vapor Transmission106.9%

NCHRP 224 Absorbed Chloride

125 ft2/gal.

Series II

88%

Series IV

98%
System information

System Structure

2–3 coats either as stand-alone or combined with surface applied corrosion inhibitor and/or protective coating.
Technical Information

Water Absorption

.06 % (24 h)/.1 % (48 h)

ASTM C-642

Freeze Thaw De-Icing Salt Resistance

Scaling Resistance

None

90 Day Salt Ponding

82.6% (0.5-1")

Penetration Depth

> 0.4 in. (10 mm)

Class II

Application

Application Information

Substrate Moisture Content

< 5–6 % when measured with Tramex

Waiting / Recoat Times

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 inclusive of water based dispersion. 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 4 hours at 68 °F (20 °C).
Consumption

Coverage

Dependent on absorbency of the substrate as well as the required penetration depth: 240–360 sq.ft./gal 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”. On horizontal application, avoid ponding on the surface.

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