Product Data Sheet Show all documents
Sikadur® Crack Repair Kit

Sikadur® Crack Repair Kit

Concrete and Masonry Crack Repair System

Sikadur® Crack Repair Kit is for repairing and sealing of small / minor cracks in concrete and masonry. It includes a two-part polyester surface crack sealer, two-part low viscosity epoxy injection resin and all the necessary accessories needed for the application.

  • Full kit, including all necessary accessories for carrying out complete application.
  • Easy application using cartridges that fit standard cartridge application guns.
  • Fast curing surface crack sealer and injection resin.
  • Low viscosity for deep penetration into cracks.
  • Convenient 'mix in the nozzle' cartridge system.
Product Data Sheet Show all documents

Usage

Repairing and / or sealing cracks in concrete and solid masonry using:
  • Low pressure resin injection technique for vertical, horizontal or overhead applications.
  • Gravity feed technique for horizontal applications.
 

Advantages

  • Full kit, including all necessary accessories for carrying out complete application.
  • Easy application using cartridges that fit standard cartridge application guns.
  • Fast curing surface crack sealer and injection resin.
  • Low viscosity for deep penetration into cracks.
  • Convenient 'mix in the nozzle' cartridge system.

Packaging

Kit contents:

  • Sikadur® Crack Sealer 300 ml cartridge (2 pcs)
  • Sikadur® Injection Resin 250 ml cartridge (2 pcs)
  • Sikadur® Crack Sealer mixer nozzle (2 pcs)
  • Sikadur® Crack Sealer applicator fan (2 pcs)
  • Cartridge flow restrictor (2 pcs)
  • Sikadur® Injection Resin mixer nozzle with extended tube (2 pcs)
  • Push fit connector (1 pc)
  • Injection ports (16 pcs)
  • Pair of gloves (2 pcs)
  • Wooden applicator (Spatula) (2 pcs)

Colour

Sikadur® Crack Sealer 

(Parts A+B mixed)

Concrete grey

Sikadur® Injection Resin

(Parts A+B mixed)

Transparent / Yellowish

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • CE Marking and Declaration of Performance to EN 1504-5 - Concrete injection.
  • Conforms to ASTM C-881 Grade 1, Class C, Types I, II.
Product Information

Shelf Life

18 months from date of production.

Storage Conditions

The product must be stored in original, unopened and undamaged packaging in dry conditions at temperatures between +5 °C and +25 °C. Always refer to packaging.

Density

Sikadur® Crack Sealer (A+B mixed)

~1,6 kg/l

Sikadur® Injection Resin (A+B mixed)

~1,1 kg/l

Viscosity

Sikadur® Injection Resin (A+B mixed)

~500 cps at +23 °C

Volatile organic compound (VOC) content

Sikadur® Crack Sealer

4,3 %

Sikadur® Injection Resin

5,4 %
Technical Information

Compressive Strength

Sikadur® Injection Resin

Time

Temperature

+5 °C

+20 °C

+35 °C

4 hours

--

~4 N/mm2

8 hours

--

~16 N/mm2

16 hours

-

~17 N/mm2

~25 N/mm2

1 day

-

~24 N/mm2

~37 N/mm2

3 days

~11 N/mm2

~62 N/mm2

~39 N/mm2

7 days

~46 N/mm2

~65 N/mm2

~49 N/mm2

14 days

~55 N/mm2~67 N/mm2~55 N/mm2

28 days

~65 N/mm2

~70 N/mm2

~70 N/mm2

Product cured and tested at temperatures indicated in table. Test specimen size: 12,7 mm × 12,7 mm × 25,4 mm. 

Modulus of Elasticity in Compression

~16,900 N/mm2 (7 days / +23 °C)

(ASTM D 695)

Flexural Strength

~70 N/mm2  (7 days / +23 °C)

(ASTM D 732)

Tensile Strength

~43 N/mm2  (7 days / +23 °C)

(ASTM D 638)

Tensile adhesion strength

Dry concrete

> 3,2 N/mm2 (concrete failure)

Moist concrete

> 2,0 N/mm2 (concrete failure)

All values determined after 7 days at +23 °C. 

Heat deflection temperature

~43 °C (~110 ° F)

(7 days / +23 °C)

(ASTM D 648)

Water Absorption

~0,24 % (7 days / +23 °C)

(ASTM D 570)

Application

Application Information

Mixing Ratio

Sikadur® Crack Sealer

Part A : Part B = 10:1

Sikadur® Injection Resin

Part A : Part B = 1:1

Layer Thickness

Sikadur® Crack Sealer

Maximum ~8 mm

Sikadur® Injection Resin

0,1 – 6 mm

Sag Flow

Sikadur® Crack Sealer (A+B mixed)

Non-sag, including overhead

Sikadur® Injection Resin (A+B mixed)

Liquid

Product Temperature

+5 °C minimum / +30 °C maximum

Ambient Air Temperature

+5 °C minimum / +45 °C maximum

Dew Point

Beware of condensation.
Substrate temperature during application must be at least +3 °C above dew point.

Substrate Temperature

+5 °C minimum / +45 °C maximum

Curing Time

Sikadur® Crack Sealer

Temperature

Open Time - Tgel

Curing Time - Tcur

(Injection Time)

+30 °C (86 °F)

4 minutes

30 minutes

+25 °C (77 °F)

5 minutes

40 minutes

+20 °C (68 °F)

6 minutes

50 minutes

+10 °C (50 °F)

10 minutes

85 minutes

+5 °C (41 °F)

18 minutes

145 minutes

Sikadur® Injection Resin

Temperature

Open Time - Tgel

Peel-off Time

(Crack sealer removal)

Curing Time - Tcur

+30 °C (86 °F)20 minutes3 hours12 hours

+20 °C (68 °F)

30 minutes

6 hours

24 hours

+5 °C (41 °F)

2 hours

18 hours

72 hours
Consumption

Consumption

Depending on crack width and crack depth, the kit yields approximately 2-4 metres of crack length.
Application steps

SUBSTRATE QUALITY

  • Concrete must be at least 21 – 28 days old, depending on curing and drying conditions.
  • Substrate surfaces along the line of the crack required for the Sikadur® Crack Sealer, must be sound, clean and dry. 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 of the injection ports.
  • Cracks must be clean. Horizontal cracks, which are filled by the 'gravity feed' technique, should be v-notched along the entire crack length with grinding equipment.

MIXING

Preparing the Sikadur® Crack Sealer Cartridge

En_02_Sikadur_Crack_Sealer_step-Turncap_1000

1. Unscrew and remove the cap.

En_02_Sikadur_Crack_Sealer_cutcap_step_1000

2. Cut the end off the protective film.

En_02_Sikadur_Crack_Sealer_step-capdown_1000

3. Screw on the square mixing nozzle.

En_02_Sikadur_Crack_Sealer_step-close_1000

4. Place the cartridge into the application gun ready for use. Pump gun until both resin parts are extruded as one mixed consistent colour. Do not use unmixed material.
 

En_02_Sikadur_Crack_Sealer_step-capoff_1000

5. After bonding on the injection ports, remove the tip from the static mixing nozzle.

En_02_Sikadur_Crack_Sealer_step_1000

6. Fit the applicator fan onto the square mixing nozzle then start the crack sealing application.

Note: When the work is interrupted, the square mixing nozzle can remain on the cartridge after the gun pressure has been released. If the resin has hardened in the nozzle when work is resumed, a new square mixing nozzle must be attached.

Preparing the Sikadur® Injection Resin Cartridge

02_Em_Sikadur_Injection_Resin_step_1000

1. Unscrew the screwcap (do not throw away) and remove the plug from the cartridge outlet.

En_02_Sikadur_Crack_Sealer_step-Turncap_inwards_1000

2. Fit the cartridge outlet plug into the cartridge then place injection resin mixer nozzle onto the cartridge.

En_02_Sikadur_Crack_Sealer_step-Twist_1000

3. Slide the screwcap over the injection resin mixer nozzle and screw onto the cartridge.

En_02_Sikadur_Crack_Sealer_step-close_1000

4. Place the Sikadur® Injection Resin cartridge into the application gun ready for use.

En_02_Sikadur_Crack_Sealer_step-Tubeinwards_1000

5. Fit the flexible extension hose onto the injection resin mixer nozzle.

En_02_Sikadur_Crack_Sealer_step-Putin_1000

6. Fit push fit connector onto the hose. Pump gun until both resin parts are extruded as one mixed consistent colour. Do not use unmixed material. Place connector over an injection port and start the injection application.

CLEANING OF TOOLS

Clean all tools and application equipment with Sika® Thinner C immediately after use. Hardened material can only be removed mechanically.

 

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