Knowledge of waterproof coatings

The common characteristics of waterproof coatings used for building waterproofing are as follows:

1, the waterproof film formed by the waterproof coating has good extensibility, water resistance and weather resistance, and the waterproof effect is good.

2, waterproof layer light weight, especially suitable for light roof waterproof.

3, waterproof coating construction is convenient, it can not only in the horizontal plane, but also in the facade, Yin and Yang Angle and various shapes of complex surface construction, forming a seamless, complete waterproof film.

4, the waterproof coating on the base surface is not only the main material of the waterproof layer, but also a good performance binder. It can be used in the base cracks, construction joints, rainwater buckets and around the pipes, etc., paste the body reinforcement material, easy construction, good waterproof and seepage blocking effect.

5, the use of paint waterproof, maintenance is more convenient.

6, the use of waterproof paint, no heating, not only reduce environmental pollution, but also easy to operate, improve the working conditions.

The selection of waterproof coating varieties should pay attention to the following aspects:

1, the wet base should use inorganic waterproof coating or organic waterproof coating with large bonding force with the wet base, and can also use inorganic waterproof coating and then apply organic waterproof coating to form a composite waterproof coating;

2, buried deep important projects, vibration or large deformation of the project, it is appropriate to choose high elastic waterproof coating;

3, corrosive underground environment should choose organic waterproof coating with good corrosion resistance, but also should do rigid protective layer;

4, home decoration waterproof should choose polymer cement waterproof paint.

Waterproof coating construction precautions:

1. Stir the paint thoroughly. Pour the liquid additive into a clean mixing container, and then slowly add the powder while stirring in proportion, stirring thoroughly until the formation of a powder free, uniform paste, and use up within the operating time.

2. Treat special areas. Pipe roots, Yin and Yang angles, floor drains, etc., are invited to use leakage plugging, add body strengthening materials, and brush 2 or more layers according to the use environment and performance requirements.

3. Do a good job of the second waterproof coating. After finishing the first layer, it must be allowed to dry slightly, until it is just not sticky, and then do the second layer. If it has been more than 24 hours, or the coating has cured, the surface must be re-wet with water before applying a second coat.

4. Curing. From the second day after brushing, it is recommended to cover the coating with fine mist spray or wet cloth for 2-3 days, and then perform the closed water test; For long-term water tanks should be vacant for two weeks before filling water; The stirred slurry should generally be used up within 1 hour, and the solidified material can not be reused; Do not mix with water, and do not change the proportion of emulsion at will.

5. Clean all tools and equipment with water immediately after construction.