Product Data Sheet Show all documents

Sika® Injection-201 IN

Elastic Polyurethane Injection resin for permanent watertight sealing

Sika® Injection-201 IN is a very low viscous, elastic and solvent-free polyurethane injection resin. In contact with water, a uniform, closed and therefore watertight pore structure forms, which is elastic and flexible.

  • Permanently elastic, can absorb limited movements
  • No shrinkage in subsequent dry conditions
  • Due to its low viscosity it can penetrates into cracks > 0.2 mm in width
  • Cured Sika® Injection-201 IN is inert and chemically-resistant
  • Solvent-free, environmental friendly, usable in ground water protection zones
Product Data Sheet Show all documents

Usage

  • It is used for permanent watertight sealing with some flexibility to absorb limited movement, in dry, damp or water-bearing cracks and joints in concrete, brickwork and natural stone
  • It can be used for the injection of the Sika® Fuko System (non re-injectable!)
  • It can be injected in water-bearing cracks under hydrostatic pressure, preliminary injection in such cases shall be done with Sika® Injection-101h or cementitious injection system for temporary reduction in water pressure
 

Advantages

  • Permanently elastic, can absorb limited movements
  • No shrinkage in subsequent dry conditions
  • Due to its low viscosity it can penetrates into cracks > 0.2 mm in width
  • Cured Sika® Injection-201 IN is inert and chemically-resistant
  • Solvent-free, environmental friendly, usable in ground water protection zones

Packaging

16 kg ( Part A + Part B)

Colour

Part A: Translucent
Part B: Dark Brown

Product Details

Product Information

Chemical Base

Solvent free, water reactive 2-part polyurethane resin (liquid )

Shelf Life

36 months from date of production

Storage Conditions

Store in unopened, undamaged and original sealed packaging, in dry conditions at temperatures between +10°C and +35°C.

Density

Part A

~ 1.04 ± 0.02 kg/m³

Part B

~ 1.22 ± 0.02 kg/m³

Viscosity

~250 - 600 mPa.s or centipoise (cps) (Mixed A+B at +30°C)

Application

Application Information

Mixing Ratio

2 : 1 parts by volume (Part A : Part B)

Ambient Air Temperature

+5°C min. / +35°C max.

Substrate Temperature

+5°C min. / +35°C max.

Gel time

Minimum : ~70 minutes (Mixed System at +20°C)

Maximum : ~90 minutes (Mixed System at +20°C)
Application steps

EQUIPMENT

Use injection pumps suitable for single component products or two component products.

SUBSTRATE PREPARATION

Surfaces of cavities and cracks need to be clean, free of loose particles, dust, oil and any other bond-breaking substances. Any dirt must be blown out by compressed air.

MIXING

  • Empty parts A and B into a mixing vessel and mix slowly and thoroughly for at least 2 min (max. 250 rpm) until homogeneous, observing the safety precautions. The containers are supplied according to the required mixing ratio of 2 : 1 parts by volume.
  • Partial quantities can be measured out into separate vessels. After mixing, pour the material into the pump’s feed container, stir briefly and apply within the pot life.
  • After mixing, pour the material into the pump’s feed container, stir briefly and use within the pot life.

CLEANING OF TOOLS

Clean all tools and application equipment with Xylene. Hardened/cured material can only be removed mechanically.

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