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Yunyan Special Cement Building Materials Co., Ltd.  

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polymer modified mortar mortar waterproofer 

Place of Origin: Zhejiang, China (Mainland) 
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Product Detail

Model No.: YY-921/922

Waterproof Seal Coating For Swimming Pool / Kitchen , Fl


Waterproof Seal Coating For Swimming Pool / Kitchen , Flexible Waterproofing Slurry


Flexible Waterproofing Slurry is a two-component, a thin, load-bearing waterproofing mortar based on cementitious binders, special additives and synthetic polymers. It's a special formula which developed in YUNYAN's own research laboratories.



Product features

1. Anti-fracture protection.
2. Install tile, brick and stone directly onto membrane
3. With “breathing” function, waterproof but breathable.
4. Water-based and environmental product with strong cohesive force.



Scope of application

1. Waterproofing for indoor and outdoor concrete structures, brick and other lightweight substrate.
2. The external wall, roof, floors, including tunnels, bridges, basement, pool, balcony, kitchen, bathroom, etc., especially around the nozzle, then angle part.
3. Ideal for drinking water tanks, swimming pools, rearing ponds and other long-term flooding places.



Treatment of base plane

1. Base plane must be firm, smooth, and free of dust, grease, release agents, batik materials and so on.
2. All the small gaps and trachoma can be filled by paste which is mixed with powder and a little amount of water.
3. The exterior and internal angle should be fillet.
4. Leakage phenomena should be disposed firstly, and then start further waterproofing.
5. Base plane should be pre-wet, and be constructed after no clear water. That the construction could be faster, smoother; construction efficiency could be improved, material costs could be saved.



Construction technology

1. Pour the powder into the additive in proportion, stir until get even and no end groups’ paste. After standing for 5 minutes could get the better stirring effect.
2. According to construction requirements determine the number of times, generally impervious and moisture paint 1-2 times, water proofing paint 2-3 times. It is better to paint by crossways.
3. After the first pass completion of the construction, should wait it is almost dry, or non-stick hand, and then construct a second time, usually at intervals of 2 hours.
4. If it takes too long to dry the first layer, the construction should start after wetting the base plane and without clear water.



Technical parameters   


Product name

YY-921 (type I)

YY-922 (type II)

Solid content  %



Tensile strength  (Mpa)



Breaking elongation rate  %



Water impermeability (0.3MPa, 30min)



Cohesive strength (MPa)



Impermeability  (MPa)



Mixing rate  powder:agent



Usage  kg/m²/mm






Well-mixed sizing agent should be used within 2 hours, if it comes dry don’t add water and reuse.
Construction should be done from 5 to 40, cannot be done under 0 oC or rain.
Within 24 hours of completion of the construction, should to prevent human trampling, sharp objects, light rain, frost and so on which will damage the waterproof layer.
Provide ventilation installation when construct in poorly ventilated or enclosed environment.
The air blower is not allowed to use to shorten curing time of the waterproof layer.
Waterproof product should be kept in a cool and dry place, away from direct sunlight and rain water.

 Mr. David Wu

Tel: 86-20-83550760
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Company Info

Yunyan Special Cement Building Materials Co., Ltd. [China (Mainland)]

Business Type:Manufacturer
City: Guangzhou
Province/State: Guangdong
Country/Region: China (Mainland)

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