Product Data Sheet Show all documents

Sikadur®-52 Injection Normal

Epoxy low viscosity injection resin - normal pot life

Sikadur®-52 Injection Normal is a 2-part, epoxy, low viscosity, normal pot life, injection resin specially formulated for crack injection work by either pressure injection or gravity feed techniques.
 

  • Injection temperature range +5 °C to +30 °C
  • Good adhesion to concrete, masonry, stone, steel and wood substrates
  • Suitable for both, dry and damp conditions
  • Maximum crack width 5,0 mm
  • Good mechanical properties
  • Two grades for different climatic conditions
  • High mechanical and adhesive strengths
  • Hard but not brittle
  • Low viscosity
  • Injectable with single component pumps
Product Data Sheet Show all documents

Usage

Sikadur®-52 Injection Normal may only be used by experienced professionals.
  • Crack injection resin
  • Fills and seals voids and cracks in structures such as bridges, civil engineering structures, industrial and residential buildings, e.g. columns, beams, foundations, walls, floors and water retaining structures.
  • Structural bonding
  • Preventing ingress of water and infiltration of reinforcement corrosion promoting substances
 

Advantages

  • Injection temperature range +5 °C to +30 °C
  • Good adhesion to concrete, masonry, stone, steel and wood substrates
  • Suitable for both, dry and damp conditions
  • Maximum crack width 5,0 mm
  • Good mechanical properties
  • Two grades for different climatic conditions
  • High mechanical and adhesive strengths
  • Hard but not brittle
  • Low viscosity
  • Injectable with single component pumps

Packaging

Parts A+B

1 kg pre-batched unit

Colour

Part A

Transparent

Part B

Brownish

Part A+B mixed

Yellowish-brownish

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • CE Marking and Declaration of Performance to EN 1504-5 - Concrete injection
  • Fire Testing DIN EN 13501-1, Sikadur®-52 Injection Normal, MPA Braunschweig, Test report No. K-3604/805/13-MPA BS
Product Information

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

Part A

1.121 kg/l

Part B

1.006 kg/l

Part A+B mixed

1.1 kg/l

all values at +22 °C

Viscosity

Temperature

Part A+B mixed

+10 °C

~1200 mPa·s

+20 °C

~430 mPa·s

+30 °C~220 mPa·s
Technical Information

Compressive Strength

Time

+5 °C

+23 °C

+30 °C

1 day

-

32 N/mm2

43 N/mm2

3 days

11 N/mm2

52 N/mm2

51 N/mm2

7 days

53 N/mm2

55 N/mm2

55 N/mm2

Modulus of Elasticity in Compression

Time

+5 °C

+23 °C

+30 °C

1 day

-

700 N/mm2

650 N/mm2

3 days

650 N/mm2

1100 N/mm2

1000 N/mm2

7 days

1500 N/mm2

1250 N/mm2

1000 N/mm2

Flexural Strength

Time

+5 °C

+23 °C

+30 °C

1 day

-

36 N/mm2

51 N/mm2

3 days

11 N/mm2

59 N/mm2

60 N/mm2

7 days

38 N/mm2

63 N/mm2

67 N/mm2

Modulus of Elasticity in Flexure

Time

+5 °C

+23 °C

+30 °C

1 day

-

850 N/mm2

1450 N/mm2

3 days

700 N/mm2

1400 N/mm2

1600 N/mm2

7 days

1500 N/mm2

1600 N/mm2

1750 N/mm2

Tensile Strength

Time

+5 °C

+23 °C

+30 °C

1 day

-

23 N/mm2

26 N/mm2

3 days

5 N/mm2

35 N/mm2

39 N/mm2

7 days

30 N/mm2

37 N/mm2

37 N/mm2

Tensile Adhesion Strength

Concrete:

> 4 N/mm2 (failure in concrete)

(after 7 days at + 23 °C)

(acc. to DafStb-Richtlinie, Part 3)

Coefficient of Thermal Expansion

~8.9×10-5 1/K

(EN ISO 1770)

(linear expansion between -20 °C and +40 °C)

Application

Application Information

Mixing Ratio

 
Part A : Part B = 2 : 1 parts by weight

Substrate Temperature

+5 °C min. / +30 °C max

Substrate Moisture Content

Dry or damp (SSD - Saturated Surface Dry: no standing water)

Pot Life

Temperature

1 kg

+5 °C

~120 minutes

+10 °C

~80 minutes

+23 °C

~25 minutes

+30 °C

~10 minutes

The potlife begins when Parts A+B 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 smaller quantities. Another method is to chill Parts A+B before mixing (not below +5 °C).
Consumption

Yield

1 kg of injection resin: ~0.93 L
Application steps

SUBSTRATE QUALITY

Substrate surfaces along the line of the crack capping sealer i.e. Sikadur®-31 CF Rapid, must be sound, clean, dry or matt damp. 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.

Cracks must be clean.

SUBSTRATE PREPARATION

After inserting or bonding injection ports, cap the crack with a capping sealer, allow to cure then purge cracks with resin until the resin runs clean and contaminant free.

MIXING

Add all of Part B to Part A. Mix with a Sikadur mixing spindle attached to a slow speed electric (max. 250 rpm) for at least 3 minutes. Over mixing must be avoided to minimise air entrainment. Mix full units only.

CLEANING OF TOOLS

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

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