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    Home > Coatings News > Paints and Coatings Market > Subway engineering knowledge Subway excavation structure PU coating waterproof layer construction

    Subway engineering knowledge Subway excavation structure PU coating waterproof layer construction

    • Last Update: 2020-12-25
    • Source: Internet
    • Author: User
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    China Paint Online News Information:
    Student Question: Subway Ming Dig Structure PU Paint Waterproof Layer Construction?
    (1) Brush with a brush or roller brush, mix well before use of the paint,
    (2) before brushing, the top plate surface is fully dry, completely remove the surface moisture, oil, dust and other contames, the top plate uneven or fine cracks with putty flat
    ; (3) when the first coating on the top plate to apply a primer, fully dry and then apply PU paint,
    so that the waterproof layer and the top plate better stick;
    PU coating construction should pay attention to the following points:
    (1) the coating surface to be fully dry to be painted, paint to be mixed well to use;
    (2) mixed paint to be used in full use time,
    (3) if necessary, can be diluted in the range of no more than 5%;
    (4) Brushing suitable temperature: 5 to 35 degrees C, relative humidity: 85% or less, avoid construction during the wet season,
    (5) brushing should pay attention to the paint do not touch the eyes or skin, and pay attention to maintain ventilation,
    (6) storage, placed in a cold and dark place without flame proximity.
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