Product Data Sheet
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Sikaflex® Crack Flex Sealant

High performance, textured, self-leveling, 1-part polyurethane sealant for sealing cracks.

Sikaflex® Crack Flex Sealant is a single component, textured, self-leveling, premium grade polyurethane sealant for permanently sealing horizontal cracks.

  • 1-component, no mixing, ready-to-use
  • Self-leveling
  • Textured to blend with concrete surface
  • Elastic technology allows for crack movement
  • Waterproof
  • Resists aging and weathering
  • Convenient; use with standard caulk gun
  • Paintable with water-based, oil-based or rubber-based paints
     
Product Data Sheet
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Usage

Sikaflex® Crack Flex Sealant is used to seal horizontal cracks up to 1 in. (38.1 mm) wide in concrete and cementitious slabs, such as:
  • Driveways
  • Garages
  • Sidewalks
  • Balconies
  • Pavements
  • Terraces
  • Decks
  • Walkways
  • Steps
 

Advantages

  • 1-component, no mixing, ready-to-use
  • Self-leveling
  • Textured to blend with concrete surface
  • Elastic technology allows for crack movement
  • Waterproof
  • Resists aging and weathering
  • Convenient; use with standard caulk gun
  • Paintable with water-based, oil-based or rubber-based paints
     

Packaging

10.1 fl . oz. moisture proof composite cartridge, 12/case

Color

Gray

Product Details

Product Information

Shelf Life

12 months in original unopened packaging

Storage Conditions

Store at 40 to 95 °F (4 to 35 °C). Condition martial to 65 to 75 °F (18 to 24°C) before using
Technical Information

Resistance to Weathering

Excellent

Service Temperature

-40 to 170 °F (-40 to 77 °C)

 

Application

Application Information

Ambient Air Temperature

40 to 100 °F (4 to 38 °C). Sealant should be installed when joint is at midrange of its anticipated movement

Substrate Temperature

40 to 100 °F (4 to 38 °C). Sealant should be installed when joint is at midrange of its anticipated movement

Cure Time

Final cure: 3 to 5 days

Tack Free Time

1 to 2 hours
Consumption

Coverage

10.1 oz (299 ml) Cartridge: Yield in Linear Feet

Depth 1/4"

Depth 3/8"

Depth 1/2"

Width

1/4"

24.3

3/8"

16.210.8
1/2"12.18.16.1
3/4"8.15.44.0
1"3.0
1-1/4"2.4
1-1/2"2.0
Application steps

SUBSTRATE PREPARATION

Clean all surfaces. Cracks must be sound, clean, dry, frost-free, and free of oil and grease. Curing compound residues and any other foreign matter must be thoroughly removed.

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