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High Quality Waterproof Material for Walls

Description:

MD-727 is a kind of high performance environment-friendly waterborne water-proof grout which is suitable for many kinds of interior and exterior surfaces and brick walls.

Where to use:

All the interior and exterior concrete surfaces or brick surface of construction, such as tunnel, bridge, basement, swimming pool, balcony, kitchen, toilet etc, especially good for the area around the pipe end and joint.

Advantages:

1. Water-based environment-friendly product. Nontoxic, nonradiative and no pungent odor. Suitable for the place long immersed in water, such as drinking water pool, swimming pool and fish pond.

2. Strong bonding performance. With its good combination with the base, you can apply mortar and then tile or stone materials directly on the water-proof film.

3. Suitable for damp surface, horizontal or vertical surface,

4. Cement-based product, aging and weather-resistant.

5. Water-proof and air-breathing.

6. It can be resistant to the small cracks caused by the light nonstructural shaking and normal displacement of the constructions.

Technical Data:

1. Solid content (%):≥65

2. Tensile strength(MPa): ≥1.2

3. Poromericity(0.3MPa, 30min): no water penetration found

4. Percentage of breaking-elongation(%):≥200

5. Bonding strength(MPa): ≥0.5

6. Mixing ratio: Powder : Additive=25:18 by weight

7. Packing Size: 25kg/bag(powder); 18kg/barrel(additive)

8. Shelf Life: Powder (sealed): 1 year; Additive(sealed) 6 months

Application Instructions:

1. Surface Preparation:

•The surface should be tough, flat and free of dust, grease and other contaminants.

• All the small cracks, holes, pits should be filled up with concrete mortar.

• All the interior or exterior vertical angles should be trimmed to an arc with concrete mortar.

•Under high temperature, wet the surface with water first.

2. Application Method:

•Pour the powder into the additive at the ratio, and then use electrical blender to stir evenly. Don’t add water.

•Keep the grout for 5 to 10 minutes, and then stir it again to achieve the best result.

•The application times depend on use purpose. Usually 1-2 times for anti-damp and leakage purpose and 2-3 times for water-proof purpose is recommended. Application in cross way is best.

•After the first layer, wait until the surface is non-stick (about 2 hours). Usually 6-7 hours later, you can step on the first layer to continue the second one.

•If the hardening time of the first layer is too long, wet the surface before the application of the next layer.

If you need to walk on the ceiling after the whole application, then you must apply cement on the water-proof layer. If not, then no need to do this. Also you can’t walk on the water-proof layer in spiked shoes before you apply cement.

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