Sikaflex® Crack Flex Sealant

The maximum continuous level is 5 ppm of chlorine.

Do not use in contact with bituminous / asphaltic materials.

When over-coating with water, oil and rubber-based paints, compatibility and adhesion testing is essential. And do not use paints which are silicone-based or have a high solvent content. 

Final cure: 3 to 5 days. But you need to allow 1 week cure at standard conditions when using Sikaflex® Crack Flex Sealant in total water immersion situations.

Avoid contact with alcohol and other solvent cleaners during the cure, and do not cure in the presence of curing silicone sealants.

Proper design is 2:1 width to depth ratio.

Maximum sealant depth is 12.7 mm (1/2 in.), and width is 38.1 mm (1 1/2 in.). Minimum depth is 6.3 mm (1/4 in) and width is 6.3 mm (1/4 in.).

Cut plastic tip to desired size and puncture airtight seal at base of tip. NOT FOR SLOPED SURFACES. Maximum sealant depth is 12.7 mm (1/2 in), and  is 38.1 mm (1 1/2 in). Minimum depth is 6.3 mm (1/4 in) and width is 6.3 mm (1/4 in). Pour sealant into joint slot in one direction and allow sealant to flow and level out as necessary. Tool as required, although minimum tooling is necessary. Proper design is 2:1 width to depth ratio. Always use bond breaker tape or closed cell backer rod for support on horizontal joints.

NOT FOR SLOPED SURFACES.

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.

Sikaflex® Crack Flex Sealant is used to seal horizontal cracks up to 1–1/2 in. (38.1 mm) wide in concrete and cementitious slabs, such as:

• Driveways
• Garages
• Sidewalks
• Balconies
• Pavements
• Terraces
• Decks
• Walkways
• Steps

The application temperature should be between +4 and +38 °C (39 to 100 °F). 

3.72 lin. m (12.2 linear ft) for a 13 x 6 mm (1/2 in x 1/4 in) bead.