Sikaflex® Self Leveling Sealant

Avoid exposure to high levels of chlorine (maximum continuous level is 5 ppm of chlorine.)

Tack-free time should be between 1 to 2 hours. And the Final cure should be between 3 to 5 days.

Since system is moisture-cured, permit sufficient exposure to air. Avoid contact with materials or surfaces impregnated with, or containing, oil, asphalt, tar, or bituminous substances. Don’t cure in the presence of uncured silicone sealants, alcohol, and other solvent cleaners.

Sikaflex® Self-Leveling Sealant can be painted over with water, oil- and rubber-based paints.

When over-coating with water-, oil- and rubber- based paints, compatibility and adhesion tests are essential.

Allow at least seven (7) days for sealant to cure under stated conditions when using Sikaflex® Self-Leveling Sealant in total water immersion situations or prior to painting.

Proper design is 2:1 width to depth ratio for movement joints. 

Joint dimensions should allow for 6 mm (1/4 in) minimum and 13 mm (1/2 in) maximum depth of sealant.

For best performance Sikaflex® Self-Leveling Sealant should be applied into the joint when the joint is at the mid-point of its designed expansion and contraction. Cut plastic nozzle on cartridge to desired joint size and puncture airtight seal at base of nozzle. Place cartridge in suitable sized caulking gun, place nozzle at the bottom of the joint and apply sealant into joint slot. Work in one direction and allow sealant to steadily flow and level out as necessary. Tool as required, although minimum tooling is necessary. Joint dimensions should allow for 6 mm (1/4 in) minimum and 13 mm (1/2 in) maximum depth of sealant. Proper design is 2:1 width to depth ratio for movement joints. Always use bond breaker tape or closed cell backer rod for support on horizontal joints.

Do not apply when joint walls are wet, or damp and a moisture-vapour transmission condition exists from the substrate as this can cause bubbling within the sealant.

Priming is not usually necessary. Most substrates only require priming if testing indicates a need or where sealant will be subjected to water immersion after cure. 

All joint surfaces must be clean, sound, dry and frost-free. Joint walls must be free of oils, tar, asphalt, bitumen, grease, paints, coatings, sealers, curing compound residues, and any other foreign matter that might prevent adhesion. Ideally this should be accomplished by suitable mechanical methods. Install bond breaker tape to the bottom of the joint or compressible backer rod into the joint to prevent bond to surfaces other than the joint walls.

Sikaflex® Self-Leveling Sealant is used to seal horizontal movement joints in concrete and cementitious substrates such as:

• Driveways and garage floors
• Sidewalks and pavements.
• Balcony decks.
• Civil structures.
• Terrace decks.
• Pedestrian plazas.
• Warehouse and factory floors 

The application temperature should be between +4 and +38 °C (39 to 100 °F). Sealant preconditioned to approximately +21 °C (70 °F) is necessary when working at extremes of temperature. 

300 mL (10.1 US fl. oz) cartridge seals 3.7 m (12 ft) of 12.7 mm (1/2 in) x 6.35 mm (1/4 in) joint.

858 mL (29 US fl. oz) cartridge seals 11 m (36 ft) of 12.7 mm (1/2 in) x 6.35 mm (1/4 in) joint. 

Sikaflex® Self Leveling Sealant is 1-component, no mixing required.