What should be paid attention to in the anti-corrosion construction of outdoor steel structure engineering in winter?

Steel structure workshop engineering winter outdoor anticorrosive engineering use of anticorrosive materials should be strictly in accordance with the proportion of paint and auxiliary products provided by the product manual, not less or more. Otherwise, the paint will appear to bite the bottom, cracks and other coating defects, mixing evenly when coating, filtering after standing for 15 minutes to carry out construction. And, of course, the following

What operations should be paid attention to in the anti-corrosion construction of outdoor steel structure engineering in winter?

1, not because of personal views and other problems to add dry agent and other chemical additives. Otherwise, the paint will crack and other shortcomings of the film.

2. During the anticorrosive construction of outdoor steel structure engineering, the outdoor construction temperature shall not be less than 5℃, and the relative humidity shall not exceed 85%.

3, each layer is strictly prohibited from drying well, abnormal grinding construction. Otherwise, it is very easy to bite the bottom, fall off and other phenomena.

4. Winter temperature is low, paint drying time is long, paint and outside air contact time is long, dust particles in the air is easy to adhere to the paint, the formation of particles phenomenon (air drying is more obvious). Therefore, in order to achieve better coating effect, attention should be paid to environmental hygiene before construction.

5. Do not apply thick coating at one time, otherwise it will cause bottom biting. White spots, pinholes, bubbles and other coating defects.

6. After painting, it is not suitable to store for too long. The longer the time, the more glossiness decreases.

7. The viscosity of paint changes with temperature. Under the condition of low temperature, the viscosity increased obviously, resulting in the increase of the amount of thinner, the gloss and fullness of the film decreased. During construction, the paint film should not be too thick at a time, should reduce the paint thickness, increase the number of paint, create a gradually dry environment from the outside to the inside.

8. Paint shall not be applied when the ambient temperature is below 0℃, snowy days or thin ice is on the parts.