Product Data Sheet Show all documents

Sikadur®-53 UF

Moisture insensitive injection resin.

Sikadur®-53 UF is a solvent-free, two part, moisture insensitive liquid, based on epoxy resin.

  • Cures without shrinkage
  • High resistance to a wide range of aggressive chemicals
  • Excellent adhesion to salt-water immersed, cement bound substrates
  • High density ensures complete water displacement
  • High mechanical strengths even after hardening under water
Product Data Sheet Show all documents

Usage

  • Sikadur®-53 UF is used as an injectable resin to seal damp, wet and submerged cracks by high pressure injection
  • For adhesion of concrete and steel in damp and wet condition (by water displacement)
 

Advantages

  • Cures without shrinkage
  • High resistance to a wide range of aggressive chemicals
  • Excellent adhesion to salt-water immersed, cement bound substrates
  • High density ensures complete water displacement
  • High mechanical strengths even after hardening under water

Packaging

Pre batched unit : 3 kg (A+B)
Part A: 2 kg plastic container
Part B :1 kg plastic container

Colour

Part A : Colourless

Part B: Reddish Brown

Part(A+B) Mix : Reddish Brown

Product Details

Product Information

Chemical Base

Epoxy Resin

Shelf Life

12 months from date of production if stored properly as per recommendation.

Storage Conditions

Store properly in original unopened, sealed and undamaged packaging in dry conditions at temperatures between +5°C and +40°C. Protect from direct sun light.

Density

~ 1.1 kg/l @ +27 °C ( Mix Density)

Viscosity

~ 500 mPa.s @ + 30 °C

 

Technical Information

Compressive Strength

Curing Time

Value

1 day

≥ 40 MPa

3 days

7 days

14 days

≥ 45 MPa

≥ 50 MPa

≥ 50 MPa

* Grouted and cured under water

* Test Specimen Size: 50x50x50 mm

Tensile Strength

≥ 30 MPa,  14 days @ +30 °C

ISO 527

Tensile Adhesion Strength

≥ 8 MPa, 14 days @ +30 °C

ASTM C882

* Grouted and cured under water

* Concrete Failure

Service Temperature

Sikadur®-53 UF must be at a temperature of between +10°C and +40°C.

Application

Application Information

Mixing Ratio

Part A : Part B = 2 : 1 (by weight)

Ambient Air Temperature

+5 °C min / +40 °C max

Substrate Temperature

+5 °C min / +40 °C max

Pot Life

~ 15 min, @ +30 °C for 100g mass

According to FIP 5.1

The potlife begins when the resin and hardener are mixed. It is shorter at high temperatures and longer at low temperatures. The greater the quantity mixed, the shorter the potlife. To obtain longer workability at high temperatures, the mixed adhesive may be divided into portions. Another method is to chill parts A+B before mixing them (not below +5°C).
Application steps

SUBSTRATE QUALITY

Concrete, mortar, stone, bricks:

Substrates must be sound, clean and free from laitance, grease, oils, old surface treatments or coatings and all loose or friable particles must be removed to achieve a laitance and contaminant free, open textured surface.

Steel:
Must be cleaned and prepared thoroughly to an acceptable quality i.e. by blast cleaning and vacuum.

SUBSTRATE PREPARATION

Mortar and concrete must be older than 28 days (depends on minimal requirement of strengths).Verify the substrate strength (concrete, masonry, natural stone). Steel substrates must be de-rusted similar to Sa 2.5.
The concrete substrate must be sound and all loose particles must be removed.

MIXING

Pre-batched units:
Mix parts A+B together for at least 3 minutes with a mixing spindle attached to a slow speed electric drill (max. 400 rpm) until the material becomes smooth in consistency and a uniform green colour. Avoid aeration while mixing. Then, pour the whole mix into a clean container and stir again for approx. 1 more minute at low speed to keep air entrapment at a minimum. Mix only that quantity which can be used within its potlife.

CLEANING OF TOOLS

Clean all tools and application equipment with Solvent immediately after use. Hardened / cured material can only be mechanically removed.

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