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Estorex Putty

High Strength Epoxy Putty for civil Engineering Works

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Estorex Putty is two parts epoxy putty, based on a combination of resin and curing compound. It is a polyamide cured epoxy system, which sets even under water. Estorex Putty has been tested by SIRIM BHD in accordance to BS 6319, on Compressive Strength Test, BS 5350 Part C15:1990, on Determination of Bond Strength in Compressive Shear, Pull-Out Test, and complied with the specification in this data sheet.


Estorex Putty is general-purpose epoxy putty for the following applications:

  • Bonding of pre-cast concrete
  • Grouting of starter bar
  • Crack sealing
  • Concrete and overhead repair
  • Bolt anchoring


  • Cure under water
  • Will bond to damp surface
  • Rapid setting
  • Grey in colour, similar to concrete

Standards Compliance

  • BS 6319
  • BS 5075
  • BS 5350 Part C15:1990

Physical Properties

Density (kg/litre) 1.7 – 1.8
Colour Concrete grey
Pot Life at 25°C,
100g at 10mm thick
35 mins
Service Temperature,
BS 5075
100°C max
Compressive Strength (N/mm²)
BS 6319
2 hrs
4 hrs
8 hrs
24 hrs
7 days
30°C 25°C

10       –
30       20
60       50
75       60
90       80

Flexural strength (N/mm²), BS 6319
7 days
Shrinkage When Curing Negligible
Toxicity Non-toxic

Application Instructions

Surface Preparation

Substrate shall be thoroughly clean and free from oil, grease, etc. Loose particles shall be removed, as well as standing water.


Thoroughly mix all resin and curing compound with a spatula until a uniform mixture is achieved. Part pack mixing is possible with right ratio.



Apply the mixed product using suitable spatulas or trowels.

For Grouting of Starter Bar and Bolt Anchoring, fill the drilled hole with Estorex Putty prior to insertion of starter bar or bolt as required. Estorex Putty is suitable to grout and anchor starter bar or bolt on horizontal floor and vertical wall position.

For overhead anchoring, care should be taken to hold the starter bar or bolt in position before Estorex Putty has cured and sufficient strength has been achieved.

For Under Water Application, mix the product on dry surface and protect it from water when transferring to point of application.

For application as a Bonding Adhesive, use notched trowel to spread the compound.


Tools, etc can be clean while the mortars are still un-cure with solvent cleaner. Remove Harden material can only mechanically.

Packing & size

Estorex Putty 2 litre pack


Estorex Putty 2 litre pack will fill an area of 2m² at 1mm thick

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 specifies, end-users and contractors, as well as on-site technical assistance.


Estorex Putty should be stored on pallets in dry conditions. Under these conditions, the product will have a shelf life of 12 months.

If stored in extreme heat locations the shelf life may be reduced.


Estorex Putty contains epoxy resin, which may cause skin sensitization in certain individual.

Skin contact should be avoided and suitable barrier cream shall be applied or disposable rubber gloves shall be worn.

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.