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Estotard Precor

Surface Retarder for Concrete

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Estotard Precor is a specially formulated chemical retarder which will not be removed from the form during placing and vibrating of the concrete. As the concrete cures the action of Estotard Precor is to retard the setting of the cement in the surface matrix of the concrete.


General purpose chemical retarder for face down casting.


  • All purpose retarder for the majority of casting conditions
  • Width range of etch depths possible allowing greater selection of aggregate size.
  • Economical high coverage rate.
  • Good abrasion resistance to concrete flow.
  • May be used on steel, fiberglass, concrete or timber formwork.

Application Instructions


For best results formwork should be non-porous. Timber formwork should be sealed with Estotard Precor.

Formwork and moulds must be clean and dry before application.


Stir Estotard Precor well before use.

Apply Estotard Precor surface retarder in two thin even coat by brush or roller at the rate of about 2.5 – 3.0 m² per litre.

Concrete may be placed as soon as retarder is dry.

When the panel is lifted or forms removed the retarded surface is easily dry-brushed or water washed to expose aggregate.

The Estotard Precor film will remain on the formwork. It transfer of the retarder is required use of water to the application of retarder.

Packing & size

Estotard Precor 20 litre pail


Estotard Precor 2.5 – 3.0 m² per litre

Technical Support

Estop offers a comprehensive range of high performance, high quality of repair product for both new and existing concrete surfaces. In addition, the company offers a technical support package to specifiers, end-users and contractors, as well as on-site technical assistance.


Estotard Precor has a minimum shelf life of 12 months provided kept in cool and dry condition.


Avoid inhalation of the vapour. Ensure adequate ventilation. Avoid contact with skin and eyes. Barrier cream, gloves and goggles are recommended. If contact with the skin, remove with soap and water. Any eye contamination should be washed thoroughly with plenty of water and medical treatment sought immediately.


Estotard Precor is water besed and non-flammable.

Additional Information

Estop manufactures and offers a wide range of complementary products which includes waterstops, waterproofing products, grouts, anchors, specialized flooring products. In addition, a wide range of products formulated for repair and refurbishment of spalled concrete are available.