Acrylic waterproof coating knowledge introduction
High-elastic waterproof coating is a high-performance waterproof coating based on high-grade acrylic emulsion and added with various additives and fillers. It is an upgraded product of ordinary waterproof coating. Due to the addition of a variety of polymer additives, the waterproof performance of the product is superior to that of ordinary waterproof products, and at the same time, it has high tensile strength and can cover cracks.
Features:
1. It is highly elastic, can resist the slight vibration of the building, and can cover cracks of less than 8mm caused by thermal expansion and contraction, cracking, sinking, etc.
2, can be directly applied on the wet base surface, suitable for the corners of the wall and the water seepage around the pipe;
3, strong adhesion, the active ingredients in the coating can penetrate into the pores, micro-cracks in the cement base and produce a chemical reaction, and integrate with the substrate to form a layer of crystalline dense waterproof layer;
4, environmental protection, non-toxic, harmless, can be directly applied to drinking water projects;
5, acid, alkali, high temperature, excellent aging resistance and good corrosion resistance; can be used outdoors, have good weather resistance.
Scope of application:
It is suitable for waterproofing, anti-seepage and moisture-proof of roof and toilet room, basement, reservoir and wall.
Base surface treatment:
Common base
1, the surface must be flat, solid, clean, no oil, mold release agent, floating dust and other loose animals;
2. For larger holes and cracks, repair with mortar should be used first;
3. Prefabricated panels and joints shall be professionally sealed before construction;
4. Screws and bolts are recommended to be sealed with epoxy resin or similar materials;
5. Before using Keshuifu high-elastic waterproofing slurry, the base surface must be fully wetted with water, but at the same time there should be no water accumulation;
6. For loose porous substrates, especially cement fiberboards, the interface must be treated before the waterproofing paste is applied.
Construction process:
1. Pour the liquid additive into a clean stirred container, then slowly add the powder while stirring, and stir for 3-5 minutes until a powder-free, uniform glue is formed and run out during the operation time. Mechanical agitation (400-500 rpm) is recommended for optimum mixing results;
2. Use a roller and a brush to evenly apply the slurry on the treated substrate, and apply 2 or more layers according to the use environment and performance requirements; the thickness of the general engineering waterproof layer is 1mm, and the thickness requirement of the underground engineering construction specification is 1.5-2mm;
3, after finishing a layer, you must wait for it to be slightly dry (just not sticky), then do the second layer, generally takes 1-3 hours, depending on the compactness of the base and the temperature at that time. If it is more than 24 hours, or if the coating has cured, the second layer must be applied, and the surface must be re-wet with water.
4. Curing curing: From the second day after the slurry is applied, it is recommended to cover the coating with a fine mist spray or a damp cloth for 2-3 days, and then conduct a closed water test; for a long-term water-filled pool, it should be left empty for two weeks before it is finished. water;
5, the stirred slurry should generally be used up within 1 hour, the solidified material can not be reused;
6, do not mix with water, do not arbitrarily change the proportion of the emulsion.
clean:
Once the construction is completed, immediately clean all tools and equipment with water and mechanically clean the cured slurry.
Precautions:
1. The construction temperature should be between 5 ° C and 35 ° C;
2, the prepared slurry should be used up within 1 hour;
3, in cold regions or low temperature conditions, please pay attention to the antifreeze storage of the product, the storage temperature of the liquid components is not lower than 0 ° C;
4. When using, do not mix moisture or other materials into this product;
5. Please use appropriate protective measures such as gloves during construction.
Shelf life:
The original sealed product is stored in a dry and cool environment. Under normal storage and transportation conditions, the shelf life of the product is one year.
Reference dosage:
When the thickness of the waterproof film is 1.0 mm, the theoretical amount is about 1.5 - 2.0 kg/m2. The amount refers to the total amount of powder and liquid, and the actual amount depends on the specific base condition.
Implementation standards and product quality levels: GB/T23445-2009
Non-tapping screws are machine Screw, the pieceworker to be fastened must be tapped with taps in the screw hole in advance to match the screw threads.
The difference between tooth screws and other screws depends on whether they can be used together with nuts. Tooth screws can be used with nuts. And relative to the screws of other teeth, there are self-tapping screws. The nut of this kind of screw has no bow teeth. As for the standard teeth and fine teeth are only different pitch, it is the nut of the machine screw
Hex Machine screw,pan machine screw,flat machine screw,truss machine screw,Hexagon socket screws
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