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Estopatch SRF

Acrylic Emulsion Bonding Agent

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Estopatch SRF

Concrete Surface Repair Filler


Estopatch SRF is supplied in powder form which can be added into any polymer binder to repair concrete surface on site. It contains special pre-blended cements, graded sands, fillers and chemical additives to provide a putty mixture after blended in polymer binder.


Estopatch SRF is a specially formulated concrete surface repair filler to be added in any polymer binder to form a putty filler which can fill up the small pinholes or fine cracks on concrete surface prior to the coating application. The  addition of polymer binders to Estopatch SRF gives an extremely durable and smooth finishing.


  • Easy to use
  • Fine filler able to fill up small pinholes and hair line cracks


Physical Properties

Appearance Light Grey to Off White powder
Density, kg/L 2.6 – 2.8


Application Instructions

Surface preparation

The surface to be repaired shall be clean and free of dust, plaster, oil, paint, grease, corrosion deposits and any other deleterious substances.

Estopatch SRF should not be applied if the substrate is subject to moving water.


Estopatch SRF can be mixed in any polymer binder at the approximate ratio 2 : 1 (Estopatch SRF : Polymer binder). Mix thoroughly until a homogenous mixture obtained.


Application of Estopatch SRF mixture should be by metal scrapper or trowel to the complete area requiring treatment and allowed to dry before over coating.


Estopatch SRF mixture should be removed from tools with clean water or solvent (depends on the polymer binder) immediately after use. Cured material can only be removed mechanically.

Packing & Size

Estopatch SRF 25 kg bag



Estopatch SRF 2 – 3 kg per m2

depends on concrete porosity


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.


Estopatch SRF has a shelf life of 12 months if maintained in dry storage conditions in unopened bags. This may be reduced in location of high humidity.


Estopatch SRF contains cement powder, which might be harmful to sensitive skin. In case of contacted with eyes, rinse with water immediately and seek medical advice.

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.