Product Data Sheet Show all documents

Sika® Rugasol® G

CONCRETE SURFACE RETARDER

Sika® Rugasol® G is an economical surface retarder for concrete or mortar which is to be overlaid or abutted with a plaster, epoxy screed or another layer of concrete. After the concrete or mortar has cured, its surface is washed off and the aggregates will be exposed. This eliminates the need for sand blasting or scabbling. It is also used to achieve a decorative exposed aggregate finish.

  • Easy application by brush or spray
  • One time application only
  • Expensive scabbling is eliminated
  • Labour cost is reduced
  • Good mechanical key is provided
  • Consistent architectural decorative finish is achieved
Product Data Sheet Show all documents

Usage

  • Construction joint stopends
  • Decorative finish for floor slabs, driveways, patios, swimming pool decks, footpaths, etc.
 

Advantages

  • Easy application by brush or spray
  • One time application only
  • Expensive scabbling is eliminated
  • Labour cost is reduced
  • Good mechanical key is provided
  • Consistent architectural decorative finish is achieved

Packaging

20 L pail

Colour

Light yellowish gel

Product Details

Product Information

Shelf Life

6 months from the date of production

Storage Conditions

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

Application

Application steps

APPLICATION

Application on to fresh concrete

Placing of Concrete
The concrete is placed and compacted in the normal manner. It is then trowelled or floated.

Application
Thoroughly mix Sika® Rugasol® G with water (Sika® Rugasol® G : water = 1:2). The solution obtained is stable.
Immediately after the bleed water has disappeared from the concrete and before setting has started, spray diluted Sika® Rugasol® G directly on the concrete surface with a minimum pressure of 3 bars. It is essential that a uniform rate of coverage be achieved.
Note: Diluted Sika® Rugasol® G should never be applied to the formwork.

Removal
After initial cure of the concrete has taken place (up to 24 hours in warm weather) the soft cement laitance on the surface can be washed, brushed or water-jetted away to reveal the exposed aggregate.

Note: The depth of exposure can vary depending on the cement content of the concrete, ambient temperature, the amount of Sika® Rugasol® G and the time it is left on the concrete surface before removal. However, an etch depth of 4 mm is normal. Preliminary trials are recommended.


Application on to formwork surface

Mixing
Sika® Rugasol® G is supplied ready-to-use for this application and should not be diluted.

Application
Formwork should be clean and free from any form release agent. Sika® Rugasol® G shall be applied with a brush. A thorough and uniform rate of coverage is required to achieve a uniform and even depth of etch. Sika® Rugasol® G should be protected from direct sunlight after application. It is necessary that the layer of Sika® Rugasol® G dry completely before concreting takes place. While drying, Sika® Rugasol® G shall be protected from water and rain.

Removal
For optimum results, forms or moulds should be removed as soon as possible after the concrete has gained sufficient strength; normally 24 to 48 hours in warm weather. Wash, brush or water-jet the surface to reveal the exposed aggregate. Some of the soft cement paste will adhere to the forms when the mould is stripped. This can be removed easily from both the formwork and the concrete while still soft by washing and brushing. Always clean moulds immediately after stripping as the soft cement paste will soon harden.

 

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