Product Data Sheet Show all documents

Sika® Injection-222

Hydrophilic flexible polyurethane grout

Sika® Injection-222 is a single component flexible hydrophilic MDI based urethane injection grout. Sika® Injection-222 reacts with water to form a permanent flexible closed cell polyurethane seal.

  • Environmentally friendly
  • Solvent and phthalate free
  • Reacts with fresh and sea water
  • Suitable for hydrostatic pressure environments
  • permanently flexible
  • single component- ready to use
Product Data Sheet Show all documents

Usage

  • Seal leaks in cracks
  • Seal leaks in joints
  • Stop active water flow
  • Seal leaks in concrete, masonry and brickwork
 

Advantages

  • Environmentally friendly
  • Solvent and phthalate free
  • Reacts with fresh and sea water
  • Suitable for hydrostatic pressure environments
  • permanently flexible
  • single component- ready to use

Packaging

Sika® Injection-222- 20kg pail

Colour

yellow liquid

Product Details

Product Information

Composition

MDI based urethane

Shelf life

12 months

Storage conditions

From date of production if stored properly in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +10°C and +30°C.

Density

1.10 (g/cm3)

Viscosity

150-400 mPa.s ( 21 °C)
Technical Information

Tensile strength

1.65MPa

Elongation

120%

 

Application

Application Information

Mixing ratio

Sika® Injection-222 can be mixed with water before injection to increase the free rise ratio and to quicken the rise time. The water:resin ratio typically used is from 1:1 up to 1:4.

Reaction time

Ratio 1:1 (Water:Resin)

Temperature (°C)

Cream Time (sec) 

Rise Time (sec)

Free Rise Ratio

10

1

240

3x

20

1

150

2.5x

2511202.5x

30

1

80

2.5x

Ratio between Water:Resin at 25°C

Ratio 

Cream Time (sec)

Rise Time (sec)

Free Rise Ratio

1:1

1

120

2.5x

1:2

1

130

3.5x

1:3

1

90

3.5x

1:41803.5x
Application steps

EQUIPMENT

Sika® Injection-222 is typically injected by use of a single component pump that is designed for high pressure use.

MIXING

Sika® Injection-222 is ready to use from the pail. Make sure product is pre-conditioned before use to an optimum 20-25ºC. If product has crystallisation due to low temperature storage, indirect heating and mixing using a power drill mixer paddle may be required before use.

CLEANING OF EQUIPMENT

Please consult equipment/pump manufacturer for relative cleaning agent suitable for your individual equipment being used.

 

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