Sika-4 Rapid Setting extended information
Areas for Use
- Rendering or concreting against low water pressures.
- For rendering or concreting in wet areas.
- Leak stopping against low water pressure infiltration.
Usage
- To seal against low water pressure and small infiltrations in concrete, rock or masonry
- Allows Sika 1 renders to be applied on structures exposed to surface water
Limitations
- Where high water pressures are experienced, use – Sika-4a Waterstop.
- Setting times will be affected by ambient temperature, water and Sika-4 temperature, supplier and age of ordinary Portland cement. Trials are recommended varying the Sika-4/Water dosage, temperature and type of ordinary Portland cement until the required performance is achieved.
- Use only fresh ordinary Portland cement.
- Wear suitable protective clothing, gloves and eye protection.
Surface Preparation
Prepare surfaces by removing all loose material, dirt, moss and contaminants. Mechanically roughen surfaces to provide a key.
Application
Renders – Dilute Sika-4 Rapid Setting with clean water according to setting speed required for the application and water pressure/movement. Trials are always recommended.
Concrete – The concreting installation should be arranged to suit rapid placing. The concrete mix should contain a minimum of 400kg cement per cubic metre.
Sika-4 Rapid Setting specific data
TEST | RESULT |
---|---|
Appearance | Brown liquid |
SG @ 20°C | 1.22-1.26g/cm³ (approx.) |
Consumption | 1 part Sika 4 to 3-6 parts clean water |
Solids Content | 28.0-29.0% |
Application Temperature | +5oC min +35oC max |
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