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Sika 4a Water Stop is a ready to use quick setting leak stopping liquid which is mixed with water and ordinary Portland cement to produce a paste for leak stopping against high water pressure infiltration.
Features and Benefits
- Ready to use
- Rapid setting time
- Just add water and ordinary portland cement
- Well proven
- Does not contain chlorides
- Suitable for use with potable water
Sika 4a Water Stop is a ready to use quick setting leak stopping liquid which is mixed with water and ordinary Portland cement to produce a paste for leak stopping against high water pressure infiltration.
Uses:
- To seal against high and moderate water pressure infiltrations in concrete, rock or masonry
- Allows Sika 1 Waterproofing Renders, SikaCem 133 Gunite or Shotcrete to be applied on structures exposed to running surface water
- Basements, pits and pools
- Concrete, rock and masonry
- Subways and tunnels
Features and Benefits:
- Ready to use
- Rapid setting time
- Just add water and ordinary portland cement
- Well proven
- Does not contain chlorides
- Suitable for use with potable water
For more details please download the product data sheet from the 'DATASHEETS' tab above.
Data sheet
- Manufacturer
- Sika
- Interior / Exterior Use
- Interior & Exterior
- For Use On
- Concrete
Masonry
Rock
Tunnels
Water Retaining Structures
Manholes
Concrete Pipes
Mortar - Colour
- Clear
- Pack Size
- 5L
- Coverage
- 350ml/kg cement (1-1 dilution), 180ml/kg cement (1-4 dilution)
- Max. Application Temperature
- 35°C
- Min. Application Temperature
- 5°C
- Density
- 1.25g/cm³
- UN Number
- UN1719
- pH
- 12
- Colour(s)
- Clear
- Base Type
- Solvent Free
- Suitable For Use On
- Mortar
- Suitable For Use On
- Tunnels
- Suitable For Use On
- Water Retaining Structures
- Suitable For Use On
- Manholes
- Suitable For Use On
- Rock
- Suitable For Use On
- Concrete Pipes
- Suitable For Use On
- Masonry
- Suitable For Use On
- Concrete
- Manufacturer
- Sika
- Components
- 1K
- Usages
- Waterproofing
- Product Usage Type
- Additive
Questions
Question about the product
Basil Whalley on 2016-01-04 22:13:59 | Question:
I have a crack about 1cm wide down one side of my concrete swimming pool, can you tell me what product I would need to repair it please. |
Answer from Rawlins’ Technical Team:
Ensure the area to repair is clean and dry. Prime the bare concrete crack with 405 Tack Primer, and then use 202 Vertical Surface Repair Mortar to make good. Once cured, this can be overcoated with most single or two-pack swimming pool paints. | |
peter howard on 2015-06-18 16:42:03 | Question:
My swimming pool is leaking - I think the wall behind the mosaic tiling is porous. What Sika product would you recommend? |
Answer from Rawlins’ Technical Team:
All tiles and existing render should be removed and then the Sika 1 Waterproofing System should be applied. This is a 3 coat system using Sika 1 Spritz and Bonding Coat Mortar, Sika 1 Render Mortar and Sika 1 Finishing Mortar. Once applied this system can then be over tiled to bring the pool back to the desired appearance. Alternatively, if you wish to try a less disruptive solution first to see if the problem can be dealt with by using a waterproof coating you could prepare the existing tiles by thoroughly cleaning them and abrading to provide an adequate ‘key’ for the coating to adhere to and apply 2 coats of Rust-Oleum 5500 Solvent Free Epoxy @ 6m² per litre/per coat. | |
IMPORTANT SHIPPING & DELIVERY INFORMATION
Sika 4A Water Stop is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT