Product Data Sheet
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Sika® Multi Air-25

AIR ENTRAINING ADMIXTURE

Sika® Multi Air-25 is a synthetically manufactured, multi-component aqueous solution for the air entrainment of concrete. Sika® Multi Air-25 meets the requirements of ASTM C260/AASHTO M 154.

Sika® Multi Air-25 provides an enhanced concrete durability with a greater resistance to freeze-thaw cycles.      Sika® Multi Air-25 also provides:   
  • Controllability of the air content,
  • Improved air-void system,
  • Reduced size and number of capillary channels,
  • Improved workability especially in lean or harsh mixes,
  • Reduced bleeding.
   Sika® Multi Air-25 does not contain intentionally added chlorides.
Product Data Sheet
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Usage

Sika® Multi Air-25 is designed for use in concrete requiring air entrainment and protection from freeze-thaw damage or the harmful effect of de-icing salts. Sika® Multi Air-25 is suitable for use in a variety of concrete mixes.

Advantages

Sika® Multi Air-25 provides an enhanced concrete durability with a greater resistance to freeze-thaw cycles.      Sika® Multi Air-25 also provides:   
  • Controllability of the air content,
  • Improved air-void system,
  • Reduced size and number of capillary channels,
  • Improved workability especially in lean or harsh mixes,
  • Reduced bleeding.
   Sika® Multi Air-25 does not contain intentionally added chlorides.

Packaging

Available in 55-gallon (208-liter) drums, 275-gallon (1040-liter) totes and bulk delivery.

Color

Clear Yellow Liquid

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

Lower carbon footprint through reduction in cementitious materials and in some cases sand. More durable concrete enhancing service life.

  

A Manufacturer Inventory is available for Sika® Multi Air-25.
Product Information

Shelf Life

Shelf life when stored in original packaging in dry warehouse conditions between 40°F and 80°F (5-27°C) is one year from the date of manufacture.

Storage Conditions

Sika® Multi Air-25 should be stored above 40°F (5°C). If frozen, thaw and agitate thoroughly to return to normal state. If agitation is needed, DO NOT use pressurized air. Protect from direct sunlight.

Specific gravity

Approx. 1.010

 

Application

Application Information

Mixing

Measure the required quantity manually or by automated dispenser. Add Sika® Multi Air-25 directly to the mixing water or to the sand stream, do NOT mix with dry cement. Sika® Multi Air-25 may be dispensed on-site directly prior to placement. Care must be taken to mix thoroughly. When used in combination with other admixtures dispense each admixture separately into the mix.

  

Compatibility: Sika® Multi Air-25 can be used in combination with other Sika admixtures and can be successfully used in mix designs utilizing supplementary cementitious materials.
Consumption

Recommended Dosage

The typical dosage rate of Sika® Multi Air-25 will vary between 0.1-6.0 fl oz / 100 lb. (7-400 mL / 100 kg) of cement or cementitious materials. Various factors will affect the dosage rates.

  

Trial mixes with the actual materials should be conducted to determine the required dosage for optimum performance.

  

To the extent specialized materials are used, extreme ambient temperatures are encountered, or for other unusual project conditions, dosage rates outside the typical range may be required. For dosage rates outside the typical range, please contact your local Sika representative or the Sika Technical Services Department at 1-800-933-7452.

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