Description
USES
Sika®-4a is typically used as an initial waterproofing treatment on wet surfaces or in areas with general water leakage before applying cement-based render or gunite. Common applications include tunnels, culverts, mine galleries, water reservoirs, concrete pipes, and manholes. It can also be mixed into quick-setting mortar for tasks such as securing anchors, bolts, and other fittings that need to bear loads early in rock or concrete structures.
CHARACTERISTICS / ADVANTAGES
Sika®-4a offers several advantages, including:
- Fast setting for rapid leak sealing or repairs
- Simple to use; just add clean water and regular Portland cement
- Free from chlorides
- Solvent-free
PRODUCT INFORMATION
- Chemical Base: A blend of inorganic chemicals
- Packaging: Contact Sika for details
- Appearance / Colour: Clear liquid
- Shelf Life: 12 months
- Storage: Store in a dry, cool place, in its original sealed packaging, at temperatures between 5°C and 30°C. Keep away from direct sunlight, frost, and contamination.
- Density: Approximately 1.25 g/cm³
- pH-Value: Around 12
- Total Chloride Ion Content: ≤ 0.1%
APPLICATION INFORMATION
- Recommended Dosage: Sika®-4a to water ratio: 1:1 to 1:4, depending on the specific use
- Cement to Liquid Ratio: About 3:1
- Ambient Air Temperature: Between +5°C and +35°C
- Substrate Temperature: Between +5°C and +35°C
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