Mapei Lamposilex is a very fast-setting and hardening binder designed to block water infiltration and leaks. It can also be used for waterproof sealing of rigid joints between walls and floor slabs, as well as cracks and holes.

Pros and Cons

• Hydraulic binder;
• Stops water infiltration;
• Very fast setting;
• Rapid hardening;
• Not suitable for lime, cement, or gypsum.

Effectively Stop Water Infiltration

Do you need a quick and effective solution to water infiltration? Discover Mapei Lamposilex, the powerful hydraulic binder that instantly stops water leaks. This revolutionary formula provides immediate blockage of penetrating water, even under pressure. Whether you are dealing with basements, above-ground tanks, joints between foundations and walls, or damp brickwork, Lamposilex offers a fast and durable waterproofing and sealing solution.

Fast Setting and Hardening

Lamposilex is a pre-mixed powder binder composed of high-strength cement and special additives. Developed in Mapei’s research laboratories, this formula excels in speed and performance. With a setting time of just one and a half minutes at +20°C and properties such as extremely high compressive and flexural strength within just 30 minutes, this material is a technological breakthrough. Additionally, Lamposilex is waterproof and water-repellent, making it an ideal choice for various applications.

Application

Mapei Lamposilex is suitable for:

• Stopping water leaks in basements, subways, and underground structures;
• Sealing water leaks in above-ground tanks;
• Waterproofing rigid joints between walls and floor slabs;
• Waterproof sealing of cracks and holes.

Instructions for Use

1. Ensure the surface is clean and free from loose material.
2. Mix Lamposilex in the correct ratio to achieve a smooth, lump-free mixture. Use a ratio of 2.5 parts Lamposilex to 1 part water.
3. Waterproofing joints: Apply the prepared Lamposilex into the cavity using a trowel or spatula. Keep the surface moist for the first 15-20 minutes.
4. Stopping leaks: Press the prepared mixture into the crack or hole and hold it in place until the setting is complete (about 2-3 minutes). Remove any excess material with a sanding stone or grinder.

Refer to the product information sheet for detailed instructions and additional usage recommendations.

FAQ

Is Lamposilex suitable for use on vertical surfaces?

Yes, Lamposilex has a plastic-thixotropic consistency that allows it to be applied even on vertical surfaces.

Can I mix Lamposilex with other materials like lime or cement?

No, do not add lime, cement, or gypsum to Lamposilex hydraulic binder.

How long does it take for Lamposilex to harden?

Lamposilex has a very fast setting time of about one and a half minutes at +20°C. Once hardened, it achieves very high compressive and flexural strength and is both waterproof and water-repellent.