Product Data Sheet Safety Data Sheet Show all documents

Sika® Purigo-5 S (NZ)

Concrete dustproofer and surface hardener

  • Sika® Purigo-5 S (NZ) is an economical, easy to use surface hardener and dustproofer for concrete floors. It is a liquid based on ‘activated’ sodium silicate which reacts chemically with calcium hydroxide in the concrete to bind up and tighten the top surface, producing a hard, dust free finish.
  • Sika® Purigo-5 S (NZ) can also be used to assist with curing of newly laid concrete surfaces. The microcrystalline sealing action of Sika® Purigo-5 S (NZ) binds up the surface pores. This reduces the evaporation of moisture from the concrete and thus helps to assist in better hydration of the cement

  • Very quick and easy to apply
  • Can be used on both new and old concrete
  • Chemically reacts with concrete to become an integral part of the surface matrix.
  • Sika® Purigo-5 S (NZ) is the economical answer to the problem of surface dusting.
  • Will not prevent overcoating when used to assist with curing of concrete
  • Ideal for use as an aid to improve curing when traditional curing methods and membranes are impractical
  • Helps concrete attain maximum hydration, strength, durability and surface hardness.
Product Data Sheet Safety Data Sheet Show all documents

Usage

Sika® Purigo-5 S (NZ) is an efficient, economic product for use on concrete floors to prevent surface dusting from occurring. It will not, however, make bad disintegrating concrete good. Examples of flooring situations that would gain beneficial effect from the use of Sika® Purigo-5 S (NZ) are:
  • Warehouses and storage facilities
  • Factories and assembly plants
  • Carpark decks
  • Sika® Purigo-5 S (NZ) can be used to assist with the curing of concrete in vertical or horizontal situations where traditional methods are impractical, or subsequent coatings are to be applied which preclude the use of membrane type curing compounds.
 

Advantages

  • Very quick and easy to apply
  • Can be used on both new and old concrete
  • Chemically reacts with concrete to become an integral part of the surface matrix.
  • Sika® Purigo-5 S (NZ) is the economical answer to the problem of surface dusting.
  • Will not prevent overcoating when used to assist with curing of concrete
  • Ideal for use as an aid to improve curing when traditional curing methods and membranes are impractical
  • Helps concrete attain maximum hydration, strength, durability and surface hardness.

Packaging

20 litres and 200 litres

Colour

Clear liquid

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Sika® Purigo-5 S (NZ) has been tested for curing efficiency and at a coverage rate of 5.5m²/litre the average water loss (evaporation) is 1.42kg/m². Although this result does not meet the requirements for the standard ASTM-C309, it is very effective in areas where film forming membranes, or ponding methods cannot be used.
Product Information

Chemical Base

Water based liquid

Shelf Life

Twelve (12) months from date of manufacture if stored as stated.

Storage Conditions

Store in unopened original containers in frost free conditions below +25ºC.

Density

1.0 kg/litre

Application

Application Information

Ambient Air Temperature

Minimum application temperature: +5ºC
Consumption

Consumption

As a curing aid 5-6m²/litre
As a dustproofer 2-3 coats are recommended:
1st coat = approx 4-6m²/litre
2nd coat = approx 7-8 m²/litre
Application steps

APPLICATION

  • Sika® Purigo-5 S (NZ) is ready to use and requires no mixing.
  • For dustproofing applications, Sika® Purigo-5 S (NZ) can be sprinkled over the surface with a plastic watering can and dispersed with a soft broom or squeegee.
  • Spread Sika® Purigo-5 S (NZ) back and forth over the surface to ensure maximum and even penetration is achieved.
  • Do not allow puddles to form in depressions on the floor surface or white staining may occur.
  • After allowing 24 hours to dry the second coat can be applied in the same manner.
  • For curing requirements, Sika® Purigo-5 S (NZ) should be sprayed evenly and uniformly onto the finished surface at the stated coverage rate as soon as all visible “free” water has disappeared.
  • In hot or windy conditions it is recommended that the Sika® Purigo-5 S (NZ) be covered with polythene sheeting for the first hour after application. This will enable the microcrystalline seal to take effect without premature evaporation.
  • 24 hours after the final treatment the floor should be washed with clean water.

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