Product Data Sheet Show all documents

Parex Epoxy Injection Grout

LOW VISCOSITY EPOXY INJECTION GROUT

Parex Epoxy Injection Grout is a two-part, epoxy, low viscosity, injection grout formulated to be placed by free flow under gravity, or may be injected using a suitable hand or mechanical pump. The system gives rapid strength gain obtaining mechanical properties several times those of high quality concrete. The product is non-shrink enabling complete filling of the crack, fissure or void. The hardened grout is resistant to most chemicals, stable to sea water, petroleum products and resists freeze-thaw cycles. 

  • Low viscosity.
  • High mechanical strength.
  • Good adhesion to most construction materials (i.e. concrete, masonry, stone, steel, wood, etc.).
  • Easy to use. 
  • Can be placed by free flow under gravity, or injected with a suitable hand or mechanical pump.
  • Suitable for grouting and sealing the narrowest of gaps (as thin as 0.1mm).
  • Can be used to fill cracks, fissures and voids up to 10mm.
  • Non-shrink.
  • Application temperature range +5°C to +30°C.
  • High early strength gain.
  • Hardened grout is resistant to most chemicals, sea water and petroleum products.
  • Can provide structural support where dynamic load resistance is required.
  • Can be used to fill and bond cracked concrete.
  • Hardened grout resists freeze-thaw cycles.
  • Solvent free.
  • Available in two convenient sizes: 1.13kg and 6.075kg. 
Product Data Sheet Show all documents

Usage

  • Crack injection applications.
  • Filling and bonding of cracked concrete.
  • Structural support where thin section grouting is required.
  • Structural support where dynamic load resistance is required.
  • Bonding of lifted floor toppings.  

Advantages

  • Low viscosity.
  • High mechanical strength.
  • Good adhesion to most construction materials (i.e. concrete, masonry, stone, steel, wood, etc.).
  • Easy to use. 
  • Can be placed by free flow under gravity, or injected with a suitable hand or mechanical pump.
  • Suitable for grouting and sealing the narrowest of gaps (as thin as 0.1mm).
  • Can be used to fill cracks, fissures and voids up to 10mm.
  • Non-shrink.
  • Application temperature range +5°C to +30°C.
  • High early strength gain.
  • Hardened grout is resistant to most chemicals, sea water and petroleum products.
  • Can provide structural support where dynamic load resistance is required.
  • Can be used to fill and bond cracked concrete.
  • Hardened grout resists freeze-thaw cycles.
  • Solvent free.
  • Available in two convenient sizes: 1.13kg and 6.075kg. 

Packaging

Parts A + B

1.13kg pre-batched unit

6.075kg pre-batched unit

Colour

Part A

Transparent

Part B

Brownish

Part A + B mixed

Yellowish-Brownish

Product Details

Product Information

Chemical Base

Solvent free epoxide resin plus a low viscosity liquid hardener.

Shelf Life

24 months from date of production

Storage Conditions

The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +35 °C. Always refer to packaging.

Density

~1090kg/m3
Technical Information

Compressive Strength

Age (days)

Strength*

1

~60 N/mm²

3

~70 N/mm²
7~80 N/mm²

*typical values at 20°C

Modulus of Elasticity in Compression

~3.0 kN/mm² at 7 days

Tensile Strength

~30 N/mm2 at 7 days

Shear Strength

~60 N/mm2 at 7 days - Slant Shear

Application

Application Information

Mixing Ratio

Approximately 5:1 parts by weight

Layer Thickness

0.1mm min. / 10mm max.

Product Temperature

+5 °C min. / +25 °C max.

Ambient Air Temperature

+5 °C min. / +30 °C max.

Substrate Temperature

+5 °C min. / +30 °C max.

Pot Life

Temperature (°C)

Useable Time (minutes)*

5

~80

10

~45

20~25
30~10

*typical values when product is conditioned to 20°C prior to mixing and subjected to the above ambient conditions.
Consumption

Yield

Each 1.13kg pack will yield approximately 1 litre of mixed grout.
Each 6.075kg pack will yield approximately 5.62 litres of mixed grout.
Application steps

SUBSTRATE QUALITY

Substrate surfaces along the line of the crack capping sealer (i.e. Sikadur®-31+), must be sound, clean and dry. The surfaces and gaps must be free from standing water, ice, dirt, oil, grease, coatings, laitance, efflorescence, old surface treatments, all loose particles and any other surface contaminants that could affect adhesion.

SUBSTRATE PREPARATION

Ensure that grouting surfaces are free from dust and oily contamination. Small gaps may be blown out using clean dry compressed air. Steel should be free of rust and flaking mill scale. All work surfaces must be essentially dry.

MIXING

For each pack size all containers must be used to complete the mix. Pour all of the resin and hardener into a suitable mixing vessel. Thoroughly mix the components with a slow speed drill with mixing spindle for at least 3 minutes, until a homogenous clear product is achieved.

APPLICATION

Pouring Under Gravity

For supporting structures, where Parex Epoxy Injection Grout is being poured under gravity, the use of a grout-tight shutter is essential. This may be constructed from timber and sealed using a suitable sealant. Apply a suitable release agent to the formwork surfaces which will enable releasing after the grout has hardened. Alternatively, use thick polyethylene sheets. Pour the mixed material within formwork to specified levels. Allow to harden sufficiently before striking any formwork.

Crack Injection

Drill and fix suitable injection tubes at approximately 300mm centres along the crack-line using Sikadur 31+ for fixing the tubes and facing up the crack. Allow prepared crack system to harden, approximately 8 hours at 20°C. Use a low pressure pump to inject mixed grout starting at the lowest point of the crack and work upwards to the highest point sealing off each injection point in turn. Place the mixed grout within the useable time as stated in the table above. At the end of the useable time, the mix will start to generate a great deal of heat. At this time any unused material should be mixed with sand to reduce the heat output and discarded. Allow grout to cure for at least 24 hours. Cut off external parts of injection tubes and make good with Sikadur 31+.

CURING TREATMENT

No special curing practice is required.

CLEANING OF TOOLS

Clean all tools and application equipment using the Sika® Thinner C in accordance with the Product Data Sheet. Hardened material can only be mechanically removed.

 

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