JS—Composite waterproof coating (polymer cement-based waterproof coating)
● Material characteristics:
(1) Can be applied to wet or dry substrates of a variety of materials Direct construction;
(2) Non-toxic, odorless and pollution-free;
(3) Construction is safe, simple and short in construction period;
(4) Coating The layer is tough, water-resistant, weather-resistant, has excellent durability, good elasticity, and can be colored;
(5) It can bond well with the protective layer outside the waterproof layer.
● Main technical indicators of materials (7d):
project | Technical indicators | project | Technical indicators |
Solid content% | ≥65 | Low-temperature flexibility | –10℃ ≥80 |
Drying time h | 3~8 | Impermeability | 0.3Mpa 30min No leakage |
Tensile strength Mpa | ≥1.2 ≥1.8 | Bond strength Mpa | ≥0.5 ≥1.0 |
Elongation at break % | ≥200 |
● Material packaging, storage and preservation:
Liquid materials must be stored at 5℃ The powder should be placed in a dry place in the shade above, with a shelf life of one year.
Large packaging: liquid: 30kg per barrel; powder: 3 bags per box, 7kg per bag.
Note: Each group has one barrel and two boxes; liquid material: 25kg per barrel; powder material: 5 bags per box; 5kg per bag
Small packaging: liquid material: 5kg per barrel; powder material: 3.5kg per bag.
Note: Each group has two bags per barrel; liquid material: 5kg per barrel; powder material: 5kg per bag
● Construction conditions:
Cannot be constructed below 0℃ or in the rain, otherwise the film will not form well.
● Scope of application:
JS-composite waterproof coating type I can be used on wet or dry bricks Construction on stone, mortar, concrete, metal, wood, hard plastic, glass, gypsum board, foam board, asphalt, rubber, SBS, APP, polyurethane and other base surfaces, for new and old buildings and structures (such as houses, underground projects, tunnels , bridges, pools, reservoirs, etc.), it can also be used as a binder and exterior dry wall decorative coating. It is especially suitable for construction in basements, underground tunnels, pools, etc. that are particularly humid and immersed in water for a long time.
● Base surface treatment:
The base surface must be flat, firm, clean, free of open water, and no leakage. The uneven and cracked areas must be leveled first, and the leakage areas must be blocked first. Leakage treatment (it is recommended to use Zhanhai brand leakage plugging powder produced by our company), and the yin and yang angles should be made into arc angles.
● Material configuration:
If you need to add water, first add water to the liquid Add water to the material, stir with a mixer while slowly adding the powder, and then stir thoroughly until there are no lumps in the material (the stirring time is about 5 minutes, it is best not to stir by hand).
Primer coating The weight ratio of the primer is liquid: powder: water = 10: 7: 14
The weight ratio of the primer is liquid: powder: water = 10: 20: 30
The weight ratio of the lower layer, the lower layer and the upper layer of paint is liquid:powder:water=10:7:0～3
The weight ratio of the lower layer, the lower layer and the upper layer of paint is liquid:powder:water=10:20 : 4～8
Inorganic materials can be added to the upper coating to form a colored coating. The weight ratio of the colored coating is liquid:powder:color:water=10:7:0.5～1:0～3 ;
Sloped surface. No or less water should be added when constructing the top surface or facade. More water should be added on a flat surface under the hot sun. If you need to add non-woven fabric, you can use 35~60g/㎡ polyester non-woven fabric. .
● Usable time and drying time:
Under the conditions of liquid: powder: water = 10: 7: 0~3 and a temperature of 20 degrees, the usable time of the coating is 3 hours , the coating drying time is 3 to 8 hours. The on-site environment has low temperature, high humidity, and poor ventilation. The usable time is longer, otherwise it is shorter.
Liquid: powder: water = 10: 20: 4 ~8 When the ambient temperature is 20 degrees, the usable time of the coating is 3 hours, and the drying time of the coating is 3 to 8 hours. If the ambient temperature of the site is low, the humidity is high, and the ventilation is poor, the usable time will be longer, otherwise it will be shorter.
● Construction method:
(1) Construction method I:
Coating structure:
Construction sequence:
Amount of each layer: 0.2～0.3kg/㎡; 0.7～0.9kg/㎡; 0.7～0.9kg/㎡;
Total amount of material: 1.6～2.1kg/㎡
Thickness (d): about 1mm
(2) Construction method II:
Coating structure:
Construction sequence:
Every Layer dosage: 0.2～0.3kg/㎡; 0.7～0.9kg/㎡; 0.7～0.9kg/㎡; 0.7～0.9kg/㎡
Total material usage: 2.3～3.0kg/㎡
p>Thickness (d): about 1.5mm
(3) Construction method III:
Coating structure:
Construction sequence:
p>Amount per layer: 0.2～0.3kg/㎡; 0.6～0.7kg/㎡; 30～60g/㎡; 0.6～0.7kg/㎡; 0.7～0.9kg/㎡;
Total material consumption: 2.1～2.6kg/㎡
Thickness (d): about 1.5mm
● Construction operation:
Use roller or brush Coating should be completed layer by layer in the order of base layer - lower layer - non-woven fabric - middle layer - upper layer. If you need to add a lower layer of non-woven fabric (such as waterproofing of important buildings and waterproofing of special-shaped parts of the building), the non-woven fabric and middle layer should be added. Continuous construction. The time interval between each layer shall be based on the previous layer of coating drying and not sticking. According to the actual engineering requirements, it can be made into three or four layers. Non-woven fabrics can be added, non-woven fabrics can be added, and colors can be added. No color is required.
● Notes:
(1) The well-proportioned paint should be stirred evenly at all times during use to avoid precipitation.
(2) ) The coating should be as uniform as possible and cannot be deposited locally. Each layer of coating must be taken according to the specified amount and cannot be too thick or too thin. If the thickness of the waterproof layer is not enough, an additional layer can be applied.
(3 ) After the waterproof layer is completed, a protective layer should be made to prevent artificial damage to the waterproof layer.
If required, it can be made into three or four layers, non-woven fabric can be added, non-woven fabric can be added, color can be added or no color can be added.
● Notes:
( 1) The well-proportioned paint should be stirred evenly at all times during use to avoid precipitation.
(2) The coating should be as uniform as possible without local deposition. Each layer of coating must be taken according to the specified amount and must not be If it is too thick or too thin, if the thickness of the waterproof layer is not enough, you can add another layer.
(3) After the waterproof layer is finished, a protective layer should be made to avoid artificial damage to the waterproof layer.
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