Construction technology of polyurethane waterproof coating

Construction procedure:

Cleaning the base layer to brush the base layer treatment agent to brush the additional layer of waterproof coating to paint the first - the coating - the second coating - the third coating - the paint - the first water storage test - scattered sand - quality acceptance - protection layer construction - the second water storage test.

Operation points:

1. Clean the base: clean the base; Base should be done to find slope accurately, drainage smooth, smooth surface, solid, no ash, sand, shell and cracking phenomenon. The surface of the base layer shall reach a dry state before the primer is applied.

2, brush the base treatment agent: polyurethane in accordance with the specified proportion of the deployment of another appropriate diluent mixed evenly can be used. In the Angle of Yin and Yang, tube first root evenly with brush again, then large area coating, material consumption is about 0.2 ㎏ / ㎡. After painting and brushing, dry for more than 4 hours before the next process of construction.

3, the coating brush additional enhancement layer waterproof coating: in the floor drain, pipe root, Yin and Yang Angle and the entrance and other vulnerable parts easy to leak, should be the first polyurethane waterproof coating uniform coating scraping once to do additional enhancement layer processing. According to the design requirements, the detail structure can also be used for additional reinforcement layer treatment with matrix reinforcement material. Tire body reinforced material width is 300 ~ 500 ㎜, lap seam 100 ㎜, construction, and the shop is stuck flat, scraping edge of polyurethane waterproof coating.

4, paint scraping the first time: the correct allocation of polyurethane waterproof coating and stir evenly, with rubber scraping or brush evenly coated once. Thickness is consistent, while operating in SAP is 0.5 ~ 0.8 ㎏ / ㎡.

5, paint scraping the second coating: after the first coating film curing and drying, according to the first coating scraping method coating scraping the second coating. Paint scraping direction should be perpendicular to the first - time, with the same amount of material and the first - time.

6, paint scraping the third coating: after the second coating film curing and drying, according to the first coating scraping method coating scraping the third coating. Paint coating direction should be vertical, and the second time with shoes as follows: 0.4 ~ 0.5 ㎏ / ㎡.

7. The first water storage test: after the second coating film is cured and dried, the water storage test can be carried out. Water storage test 24 hours after observation of no leakage is qualified.

8, decoration layer construction: coating waterproof layer storage test does not leak, quality inspection is qualified, can be carried out powder cement mortar and paste ceramic tile, anti-skid floor tile and other decorative layer. Attention should be paid to the protection of finished products during construction and no damage should be done to the waterproof layer.

9. The second water storage test: after the decoration project is completed, the second water storage test shall be carried out before the completion of the project to check whether the waterproof layer is damaged by hydropower or other decoration projects after the completion. After the second water storage test is qualified, the waterproof engineering construction is considered to be completed.


联系人:张银柱 电话:18657831646或0792-5996466 地址:江西省九江市彭泽县矶山工业园
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Contact person: Zhang Yinzhu Tel: 18657831646 or 0792-5996466 Address: Jishan Industrial Park, Pengze County, Jiujiang City, Jiangxi Province
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