Sika-2 Water Plug - 5L
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Product Information
Full details
Sika-2 Water Plug is a high-performance, fast-acting waterproofing solution designed for professional contractors and DIY enthusiasts who need to address urgent water infiltration. This product excels at creating an instant seal in masonry and concrete structures, such as basements and tunnels, even under significant hydrostatic pressure. While it is incredibly effective at stopping leaks, users must note that it requires mixing with fresh Portland cement and sets extremely rapidly, meaning it must be prepared and applied in small, manageable quantities.
All features
| Model Part Number | 114452 |
|---|---|
| Brand | Sika |
Extended Product Information
FAQs
Does Sika-2 contain chlorides?
No, the Sika-2 formula is chloride-free, making it safe for use on reinforced concrete structures.
Can I dilute this product with water?
No, Sika-2 is designed to be used as a ready-to-use liquid and should not be diluted.
What type of cement should I use?
Use standard, fresh Portland cement to achieve the best results and the intended set time.
Is this product suitable for long-term crack repair?
Sika-2 is primarily an emergency sealing agent for active leaks. For permanent structural crack injection, specialized epoxy or polyurethane resins may be more appropriate.
How long does the plug take to fully cure?
The initial set is near-instantaneous, but full mechanical strength will develop as the cement hydrates over the following days.
Can I apply this in freezing temperatures?
Application in freezing temperatures is not recommended as it will impede the hydration process of the cement.
Troubleshooting
The mixture sets before I can apply it to the leak.
Reduce the batch size significantly and work faster. The reaction time is very short once the liquid is introduced to the cement.
The plug is washing away before it sets.
Ensure you are holding the patch firmly against the leak with firm pressure for a longer duration, and verify the cement-to-liquid ratio creates a stiff consistency.
The leak persists around the edges of the patch.
Apply a secondary layer over the surrounding area, ensuring you have removed all loose substrate material first.
Pros and Cons
Pros
- Instantly stops severe water leaks
- Effective under high-pressure conditions
- Chloride-free to protect steel reinforcement
- Reliable for both professional and DIY use
- Simple, ready-to-use liquid formulation
Cons
- Requires fresh Portland cement for mixing
- Extremely rapid set time limits working window
- Must be applied in small batches to avoid premature hardening
- Not intended for large-scale structural repairs
Setup, Compatibility & Care
To ensure optimal results, Sika-2 must be used in conjunction with high-quality Portland cement. Always wear gloves and eye protection, as the chemical reaction generates heat and the material adheres aggressively to skin. Before application, ensure the surface is free of oil, grease, and loose debris. While the product is compatible with most concrete and brick masonry, it is recommended to test a small area if the substrate composition is unknown. Store the product in a cool, dry place and ensure the container is tightly sealed after every use to prevent contamination.