Common problems and prevention methods of waterproof coating construction!

First, with the grass-roots bonding is not secure
specific phenomenon:
paint and grass-roots stick or foaming or bonding force is not enough
prevention and control measures:
1, grass-roots must be cleaned up
2, check the strength of the grass-roots, not sand, start Leather, loose
3, water-soluble coatings must not have clear water
4, solvent-based coatings must be dry at the base
5, the first coating must use the base material
2, the thickness is not equal
specific phenomenon:

After the paint is alive, the thickness is not uniform
prevention and control measures:
1, the grass must be flat, there must be no holes
2, painting must be divided into life
3, paint consistency adjusted according to time
Third, the specific phenomenon of
:
paint has moths, coating film construction, coating film contains small particles
prevention and control measures:
1, not to use expired or after stirring time of use of the paint
2, Two-component material manual stirring or mechanical stirring is not in place, pay attention to check the mixing material
3, use unclean barrel stirring, pay attention to the cleaning of the mixing barrel
4, the ratio is not correct, should be correctly matched to
4, coating layering
Specific phenomenon:
coating film construction after the film layering, or blistering between the coating film
prevention and control measures:
1, every time in the process of life before the construction clean-up is not in place
2, before Once again has become a waterproof film is not completely dry
5, slow drying speed
specific reasons:
because the single-part acrylic coating is volatile into a film through water, high humidity, low temperature environment, hindering the paint moisture wave hair, so the drying speed is relatively slow
prevention and control measures:
1, strengthen indoor ventilation conditions can be more suitable for the play of water
2, take thin coating and multilateral brushing, more suitable for the volatile water, In the construction must wait until each coating film drying and then brush the next
3, to use cement-based paint for construction, or use other waterproof paint


1, the grass-roots did not deal with clean, there are a large number of floating soil
2, a brush too thick, resulting in the coating film drying process, moisture volatility leads to coating cracking
3, outdoor construction, external conditions have strong winds Such weather, easy to lead to cracking
prevention and control measures:
1, before construction to remove the grass-roots floating soil, with paint bottom coating treatment of the grass-roots, take the method of many thin brushing
2, avoid windy weather in the outdoor construction
Waterproof paint into tofu slag phenomenon
specific reasons:
paint water is too large, resulting in the paint of liquid and powder separation, powder sinking, as if tofu slag
prevention and control measures:
control water, Match the product strictly according to the instructions for