Mapei Lamposilex is an ultra-fast-setting, cement-based hydraulic binder designed for immediately stopping water leaks and water infiltration, including leaks under pressure. It is particularly suitable for concrete and masonry structures where water needs to be stopped quickly before carrying out permanent waterproofing or repair work.
Key Features
- Ultra-fast setting — approximately 1 minute of working time at 20°C.
- Suitable for active water leaks, including water under pressure.
- Forms a waterproof and water-repellent plug after curing.
- High early compressive and flexural strength.
- Plastic, easy-to-shape consistency allows application on vertical surfaces without formwork.
- Suitable for use on concrete and other mineral substrates.
- Does not contain chlorides.
Common Applications
Lamposilex is suitable for:
- Plugging leaks in basements and foundations
- Stopping water infiltration in tunnels and underground structures
- Repairing leaks in water tanks, canals and sewers
- Sealing cracks and holes in concrete
- Waterproofing rigid wall-to-floor joints
- Sealing around penetrations and openings
- Stopping water before applying a subsequent waterproofing system
Technical Specifications
| Specification | Details |
|---|---|
| Product type | Rapid-setting hydraulic cement binder |
| Form | Fine grey powder |
| Mixing ratio | 100g Lamposilex : 28g water |
| Approx. working time | 1 minute at 20°C |
| Setting | Approximately 1–2 minutes |
| Application temperature | +5°C to +35°C |
| Consumption | Approx. 1.8 kg per litre of cavity |
| Compressive strength | Up to 34 N/mm² at 28 days |
| Flexural strength | Up to 9 N/mm² at 28 days |
| Packaging | 5 kg |
| Storage | 12 months when properly stored dry |
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