Anticorrosive bitumen standard applies to civil and general industrial construction equipment, pipeline corrosion resistant construction operation. 
 (1) coating material outer surface painted must be clean and free of dust, and kept dry in rainy or wet weather conditions prohibit the construction. The best environment for the construction requirements: relative humidity below 85%, substrate temperature above the dew point temperature 3 ℃ above. Coating application, you should first try Tu. 
 (2) prior to primer brushing to deal with the structure of the corner and weld surface uneven at, with putty and paint matching wipe flat or smooth transition, if necessary, the application of fine sandpaper putty surface in order to ensure the quality of the coating requirements. Coating application shall be criss-crossing between the layers, each layer should be reciprocating (quick-drying paint) until uniform. 
 (3) coating the number should be consistent with design requirements, the surface should be smooth flow direction of medium brushing. The surface should be smooth trace, the same color, no pinholes, bubbles, falling, powdering and breakage phenomena such as 

 Coating level structure of the coating thickness (mm) Thickness tolerance (mm) 
 Ordinary grade asphalt primer - bituminous coating - Outsourcing protective layer 3 -0.3 
 Strengthen the level of asphalt primer - bituminous coating - 6 -0.5 to strengthen the protective layer of bandage layers - bituminous coating - Outsourcing 
 Special strengthen the level of asphalt primer - bituminous coating - to strengthen the dressing layer - bituminous coating - Strengthening of the dressing layer - bituminous coating - Outsourcing protective layer 9 -0.5 
 Preparation of asphalt primer, first labeled the asphalt into small pieces, into a clean pot of asphalt with a slow fire and gradually heating and stirring constantly, to make it melt. Heated to about 170 ℃ evaporation dehydration does not produce bubbles until hot asphalt slowly pour in the preparation of the barrel to cool to about 80 ℃, side of the mixing side of the pro rata prepared gasoline braced with hot asphalt until completely mixed so far. Cold base oil should be brushing the film ≥ 60 ° C, film thickness of about 0.15mm. 

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