6.5 Quality Standards 6.5.1 SBS coi

6.5 Quality Standards 6.5.1 SBS coil and its cold base oil must have a factory certificate, and SBS coil has a qualified re-inspection report. 6.5.2 The detailed method of coiled material must be constructed in accordance with the clearly stated method. 6.5.3 Pay attention to the protection of the finished product during the coil construction process, and wear soft-soled shoes for construction. There must be no damage. 6.5.4 The grassroots should be cleaned up, and there should be no hollowing, sanding, and rounded corners. 6.5.5 The cold base oil shall not have any leakage, penetration, or pitting. 6.5.6 The overlap width of the joints of the waterproof layer of the coiled material shall meet the requirements of the specification, and the receiving head shall be embedded firmly. 6.5.7 The coil is firmly bonded without defects such as hollowing, damage, blistering, and wrinkles. The lap width error of the coil is -10mm. 7. Construction of the bathroom polymer waterproof coating 7.1 Basic treatment: The basic layer of the waterproof layer should be smoothed according to the design. It is required to be smoothed, calendered, solid and smooth, without sand , The moisture content is less than 9%, the detection method is: cover the surface of the base layer with a rubber sheet of 1×1m and a thickness of 1.5-2mm. After 3 hours, there is no watermark on the side of the rubber sheet close to the base layer and the surface of the base layer, indicating that the base layer has been dried. The yin and yang corners should be painted with an arc angle of R=60mm. 7.2 Grassroots cleaning: Before applying the waterproof layer, clean the dust, debris, residual hard mortar, and protruding parts on the painted surface and clean it up. It should be wiped with a clean wet cloth once, and the next process can be carried out after checking whether the base layer is uneven, empty, cracked, sanding and other defects. 7.3 Apply primer: The prepared primer (base treatment agent) should be used up within 2h. Apply the primer, apply the formulated primer evenly on the surface of the base layer with a long roller brush. The amount of brushing is about 0.3kg/m2. After brushing, it can be used when the touch is not sticky for about 4 hours. Process.7.4 Construction of coating waterproof layer: For material preparation, use an electric stirrer to forcefully stir for 3 to 5 minutes, and then use it until it is fully mixed and evenly mixed. The prepared mixture should be used up within 2h, not too long. The method of additional coating is to pass through the pipe roots of walls and boards, floor drains, drains, internal and external corners and other weak parts. The reinforced coating (additional layer) of the above-mentioned parts should be done before the large-area coating layer is constructed. The additional coating method is to lay glass fiber cloth in the additional layer of the coating film, and use a brush to remove the air bubbles during the coating operation, and stick the glass fiber cloth tightly on the base layer. The male and female corners are generally strips and the tube roots are blocks. Shape, three-sided corners, should be cut into a block cloth for laying, and the film can be painted multiple times. 7.5 Apply a coating film: After the material of the reinforcement layer of the previous coating film is cured and dried, check whether there are residual pores or air bubbles in the additional layer. If not, you can apply the first layer of coating film; If there are pores or bubbles, use a rubber scraper to force the mixture into the pores, and then apply the film locally, and then apply the first layer of film. Scrape the first layer of coating film waterproof material, use plastic or rubber squeegee to scrape evenly, and strive to be uniform in thickness, about 0.8mm, that is, the dosage is 0.8kg/m2. 7.6 Scrape the second coating film: After the first coating film is cured, the second coating film can be evenly applied on it, and the scraping direction should be perpendicular to the first coating direction; The time between the second channel and the first channel is generally not less than 12h, nor more than 48h.