Product Data Sheet
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Sika® Repair®-EP

Sika® Repair®-EP

2-component, epoxy repair, filling, sealing and forming mortar

Sika® Repair-EP is a thixotropic, two-component, repair, filling, sealing and forming mortar, based on a combination of epoxy resins with refined quartz fillers.

  • Fast cure.
  • Suitable for dry and damp concrete surfaces.
  • Non-shrink curing.
  • Curing is not hindered by high humidity.
  • Excellent adhesion to concrete.
  • High mechanical resistance.
  • Resistant to impact and abrasion.
  • Thixotropic, non-sagging.
  • Vertical and overhead applications possible.
  • Different coloured components (for mixing control).
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Product Data Sheet
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Usage

As a repair mortar for a variety of applications:        
  • Repair mortar for concrete, cement mortar and stone.
  • Filling holes and damaged corners, edges and joint sides in concrete.
  • Rigid interpretation of broad, non-moving joints.
  • Filling and sealing of cracks (static / no movement).
  • Excellent for manufacturing / forming skirting, coving or sanitary baseboards for floor / wall connections.  

Advantages

  • Fast cure.
  • Suitable for dry and damp concrete surfaces.
  • Non-shrink curing.
  • Curing is not hindered by high humidity.
  • Excellent adhesion to concrete.
  • High mechanical resistance.
  • Resistant to impact and abrasion.
  • Thixotropic, non-sagging.
  • Vertical and overhead applications possible.
  • Different coloured components (for mixing control).

Packaging

5 kg tub

Colour

Grey mortar

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Class R3 according to EN 1504-3.

  • Principle 3 (concrete repair) - Method 3.1.
  • Principle 4 (structural reinforcement) - Method 4.4.
  • Principle 7 (maintenance or restoration of passivity) - Method 7.2. 
Product Information

Chemical Base

Epoxy resin

Shelf Life

12 months

Storage Conditions

Store properly in undamaged original sealed packaging, in a dry environment, at temperatures of between + 5 ° C and + 30 ° C.

Density

2.0 kg/l (component A+B mixed).
Technical Information

Compressive Strength

~77 N/mm²

(EN 12190)

Modulus of Elasticity in Compression

~15 kN/mm²

(EN 13412)

Tensile Strength

2.4 - 3.6 N/mm²

Tensile adhesion strength

4.4 N/mm²

(EN 1542)

Coefficient of Thermal Expansion

32,5 μm/(m.°C) 32,5 μm/(m.°C)

32,5 μm/(m.°C)32.5 μm/(m.°C)

(EN 1770)

Thermal Compatibility

3.9 N/mm²

(EN 13687-1)

Capillary Absorption

≤ 0.03 kg.m-2.h-0.5

(EN 13057)

Application

Application Information

Mixing Ratio

Component A : Component B = 97.12 : 2.88 (parts by weight).

Layer Thickness

Horizontal: 60mm maximum.

Vertical: 25mm maximum.

Overhead: 10mm maximum.

Product Temperature

Minimum +5°C, Maximum +30°C.

Ambient Air Temperature

Minimum +5°C, Maximum +30°C.

Dew Point

Beware of condensation!

The ambient temperature during application must be at least 3°C higher than the dew point.

Substrate Temperature

Minimum +5°C, Maximum +30°C.

Pot Life

Approximately 90 minutes at +20°C.

The pot life starts when the resin and hardener are added, then mixed. It is shorter at high temperatures and longer at low temperatures. With a larger compact amount of mixed material, processing time will be shortened. In order to lengthen the application time at high temperatures, the amount to be mixed can be part mixed in line with the ratio and by weight. Another method is to cool components A + B before mixing (not below +5ºC).

Waiting Time / Overcoating

Temperature

Cured

Fully Polymerized

+5°C

+5°C+5°C

~36 hours

21 days

+20°C

~12 hours

14 days

+30°C

~6 hours

6 days

Note: Times are approximate and will be affected by changes in ambient temperatures and environmental conditions.
Consumption

Consumption

2 kg/m² per mm layer thickness.
Application steps

MIXING

Pour the entire amount of hardener (component B with black colour) with the binder (component A). Mix component A and component B for at least 3 minutes with a slow rotation (< 400 rpm) mixing device with mixing head, until a smooth, homogeneous material in an even grey colour is achieved. Mix only an amount of Sika® Repair-EP that can be applied within the processing time.

APPLICATION

On the prepared concrete surface, apply Sikafloor®-151 (0.35 kg/m²) as a bonding bridge. Apply the Sika® Repair-EP mortar with a trowel to the still wet primer layer (primer must not be dry).

For overhead applications, apply in a layer of up to 10 mm. After curing, a subsequent layer can be applied.

Applications on vertical surfaces in layers of maximum 25 mm can be achieved without formwork. Minimum layer thickness: 1.5 mm.

For large thicknesses or sharp corners, we recommend using formwork.

CLEANING OF TOOLS

Clean all tools and application equipment with Sika® Thinner C immediately after use. Hardened material can only be mechanically removed.

 

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