After waterproofing, first of all, the quality of the waterproof layer should be checked. It is generally divided into five steps, namely, seeing, touching, knocking, cutting, and measuring. The detection tools used are wallpaper knives, vernier calipers, steel rulers, box feet, small rubber hammers, and the like. It is to observe whether the overall quality of the appearance of the waterproof coating meets the requirements. Touch is to touch the surface of the coating film, check whether the coating is in the hand, whether it is completely cured, and whether the surface of the coating is smooth and smooth. Knocking is to use a small rubber hammer to tap the waterproof layer, check whether the waterproof layer has empty drums and bulging. Cutting is to use a wallpaper knife to cut the 20mm × 20mm coating film solid test block in the waterproof layer of the cured film to see if the film thickness is uniform and whether there is tensile strength. The thickness is measured by a thickness gauge or a vernier caliper to determine the thickness of the coating film under the cutting. After the inspection, the sampling site was repaired, and finally the water shut-off test was carried out, and the test was accepted after 24 hours.
Among them, the apparent quality acceptance of the waterproof layer is particularly important, mainly to observe whether the surface of the coating film is flat, cracked, foamed, peeled, layered, façade, tipping, falling off, and exposed.
Flatness means that the surface of the coating film is smooth, has no sharp angle, and has no unevenness;
Crack refers to irregular cracking or linear cracking on the surface, and even irregular cracking;
Foaming means that the surface of the coating film has a partial drumming phenomenon or bubbles are present;
The peeling refers to a phenomenon in which a coating film is partially separated from the base layer or separated from the coating layer;
Layering means that each time the film is separated, the film is not integrated into one body, and there is a separate separation phenomenon;
The facade sinking refers to the phenomenon that the facade paint has a linear drum, and the local line is higher than other planes;
The opening of the mouth refers to the separation of the head and the base layer from the base layer;
Shedding refers to the partial bulging of the wall surface and the large separation from the base layer;
The exposed bottom means that the lower base layer can be seen through the surface of the coating film, indicating that the coating film is not thick enough.
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2.Solid siliccone compression machine and liquid silicone injection machine
3.Disney and Sedex 4P audit factory
4.ISO 9001,IATF16949,Raw material of FDA LFGB MSDS Certificates
Look forward to your cooperation!
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