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        Preventive and Hassle-Free Waterproofing System
        
            
        
                            
        
        
        
                
        
            
        Liba Repair and Maintenance System
        
            
        
                            
        
        
        
                
        

                    	
        
                    
        
                        
        YN-B704 Pre-laid Waterproof Membrane
        
                        
                    
        
                    
        
                    
        
                        
        
                            
                                                                                    
                            
                                                        
        
                                                                                                                    
                                
        
                                
        
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                
        
                                
                                

                                                        
        
                            
        
                                
        
                                	DETAIL
                                                                    
        
                                
        
                                    
        YN-B704 Pre-laid Waterproof Membrane
        

        

        
Product Introduction


        YN-B704 Pre-laid Waterproof Membrane is made of self-adhesive polymer modified asphalt as the base material, with polyester reinforcement layer, covered with a polyethylene film (PE film) or a peelable silicone-coated release film on the lower surface, and a peelable silicone-coated release film or a reduced-adhesion protective layer on the upper surface. It is an asphalt-based polyester reinforcement waterproof membrane that can be pre-laid and applied with  adhesion construction.
        
 
        

        
Product Features:


        

          
	
        1. It can be bonded with the subsequently poured concrete as a whole, remaining inseparable even after long-term immersion in groundwater.
          2. 
	
        2. It can be applied on wet or even uneven surfaces without the need for a primer. During construction in the rainy season, its advantages are even more prominent, making it a powerful measure to ensure the construction schedule.
          3. 
	
        3. The use of solvents and fuels is eliminated during the construction process, reducing environmental pollution and safety hazards, and conserving resources.
          4. 

        

        

        
Precautions:


        

          
	
        1. Do not use metal or hard objects to damage the roll material.
          2. 
	
        2. After completion of construction, when reinforcing steel bars or pouring concrete, the waterproof layer should be protected.
          3. 
	
        3. Do not apply the roll material on a contaminated, waterlogged, or icy base surface.
          4. 
	
        4. The construction process should be carried out step by step, without any cross-construction.
          5. 

        

        

        
Scope of Application


        It is suitable for waterproofing projects of the base plates and side walls without construction space in  engineering such as buildings and open-cut subway construction.
        

        
Construction Process/Procedure


        Pre-laying Method:
        
Base cleaning → Laying reinforcement layer → Roll positioning → Laying large-area rolls with self-adhesive surface facing the structure in an empty manner → Reinforcing and sealing nodes → Quality inspection and acceptance → Tearing off the upper surface release paper (film) → Binding reinforcement bars → Repairing rolls → Pouring structural concrete.
        

        
Storage and Transportation


        

          
	
        1. Rolls should be stored in a dry, ventilated environment to prevent sun exposure, rain, and moisture.
          2. 
	
        2. Rolls of different types and specifications should be stacked separately and should be laid flat.
          3. 
	
        3. Rolls should be transported in an upright position, without tilting or cross-stacking.
          4. 
	
        4. Under normal conditions, the storage period is one year from the date of production.
          5. 

        

        

        
Specification and Model


        Thickness: 4.0mm;       Length: 7.5m
        

        
Technical Specifications/Technical Parameters


        Execution Standard: GB/T 23457-2017 (PY Category)
        

        
                                
        
                                                            
        
                            
                            
        
                                
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