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Estopatch MP


Cementitious Polymer Modified Repair Compound

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Description

Estopatch MP is a single component shrinkage compensated pre-packed repair mortar to which water is added on site. It consists of specially blended non shrink cement, graded sand, fillers and chemical polymers to provide durable repair to concrete. The lightweight fillers allow application thicknesses of 40mm vertical and 25mm soffit without formwork.

Estopatch MP has been tested in accordance to BS 6319 on Compressive Strength Test, and complied with the specification in this data sheet.

Uses

Estopatch MP is recommended for use as a general patch repair mortar in vertical or soffit repair applications.

It is suitable for repairing, rendering, patching bedding and pointing of concrete, block-work, brickwork & masonry.

Advantages

Estopatch MP is specially design for the following applications:-

  • Medium to high build application
  • Convenient, one pack product
  • Shrinkage compensated, can be applied over large areas without cracking or de-bonding.
  • Composition ensures excellent adhesion
  • Water tightness, special additives ensure optimum density and water repellence of cured surfaces

Standards Compliance

  • BS 6319
  • BS 5075

Physical Properties

Compressive Strength (N/mm²)
BS 6319 : Part 2
1 day
7 days
28 days
> 20
> 30
> 40
Flexural Strength (N/mm²)
BS 6319
28 days
5.5
Coefficient of Thermal Expansion (mm/°C) 7.3 x 10-6
Fresh weight density (kg/m³) 2300
Setting Time at 27°C (hrs)
BS 5075
2 – 4

* Compressive and flexural strength are tested at water powder ratio of 0.175

Application Instructions

Surface Preparation

Substrate shall be thoroughly clean, free of laitance, oil, dust, grease, plaster, paint, corrosion and any other deleterious substances. Smooth surfaces should be mechanically roughened by scrabbling or needle gun to form a good mechanical key. All reinforcing steel must be grit blasted to a profile of SA 2½ prior to the application of recommended primer.

Edges of the areas for repair must be saw cut to 5mm to avoid feather edging and blow out all loose dust with dry, oil free compressed air.

Priming

All surfaces must be primed prior repair. Reinforcing steel must be primed with galvanized protective coating or epoxy system which will prevent further corrosion.

All concrete surfaces should be thoroughly soaked but leaving no surface water.

Concrete surfaces must be primed with Estobond Acryl bonding agent which is scrubbed onto the surface of the concrete. It will dry in approximately one hour. Estopatch MP should be applied when the Estobond Acryl is still tacky.

If the Estobond Acryl is too wet, build up may be reduced due to slippage in vertical situation. If Estobond Acryl is left to dry for more than 8 hours at 20oC, a fresh coat shall be applied.

Mixing

Ensure that Estopatch MP is thoroughly mixed prior to use. It is essential that quantities of one bag or more are mixed with a slow drill (500rpm) with a loop paddle. For normal applications, 4 litres to the maximum of 5 litres water per 25kg bag, dependent on desired consistence. Drier mixes assist higher build and reduce the risk of drying shrinkage.

Application

For application to all surfaces, Estopatch MP is applied with a wood float to ensure positive contact with the primed substrate and initial application should be with tamping or compacting action.

Finishing can be wood float, steel trowel or sponge depending on the requirement.

The minimum layer thickness of Estopatch MP is 10mm and it canbuild up to 40mm on vertical surfaces.

Curing

Estopatch MP is a cementitious repair mortar. It must be cured immediately after finishing in accordance with good concrete practice. Estocure curing agent is recommended for this usage.

Cleaning

Estopatch MP should be removed from tools with clean water immediately after use. Cured material can only be removed mechanically.

Packing & size

Estopatch MP 25 kg bag
Estobond Acryl Refer different data sheet

Yield

Estopatch MP 16 – 18 litre per bag depend on volume of water added

Coverage

Estopatch MP One bag will cover 1.6 – 1.8 m² at 10mm thick
Estopatch MP 4 – 6 m² per litre depends on porosity of substrate

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.

Storage

Estopatch MP 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.

Precaution

Estopatch MP 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.