What is the construction temperature of scraping putty for decoration?

The construction temperature of putty for decoration is between 5℃ and 35℃, and the matters needing attention in decoration are as follows:

1. For most paints, the ambient temperature of the paint should be between 5℃ and 35℃, which refers to the surface temperature of the substrate and the air temperature. Whether it is latex paint or oily paint, low temperature coating will make brush coating and roller coating very difficult. Environmental humidity is greater than or equal to 85%, and construction is strictly prohibited.

2. The water content of the wall foundation is less than or equal to 15%, and the PH value is less than 10.

3. The plastering of the wall surface at the grass-roots level must be achieved: the wall surface is flat, and the powder cannot be removed with nails, and the hand feels smooth.

4. The putty is preferably a matching putty, and the self-adjusting putty must meet the requirements of JG/T3049 building interior wall putty. It is forbidden to add varnish or alkyd varnish, and use materials aimed at increasing the bonding strength of putty during construction to prevent "yellow" image after latex paint construction (varnish or alkyd varnish is yellow in putty, and the yellow tone will penetrate the coated surface when the weather temperature changes). ?

5, autumn and winter construction, batch of blow be bored with child must control the thickness, so as not to affect the putty dry and cause cracking problems; It is not suitable for thick batch during construction. Every time the putty dries, it can be scraped. Generally, it can be shaved 2-3 times in the living room.

6, in the construction, should ensure that the primer sealed tightly, if the grass-roots loose vegetables, strength is not enough, should be closed twice primer; Each primer must be dry, pressed with fingers, not sticky, inclined to look at the wall, with milky light, before the topcoat can be constructed.

7. The mixed coating of brush coating, gas spraying and airless spraying should be carried out in strict accordance with the construction ratio, and Bo Tu and thin spraying should be carried out as far as possible to avoid cracking and pulverization of latex paint due to low temperature.

8. Sufficient drying time should be kept between two coatings, and the interval between each coating should be at least 2 hours (25 degrees Celsius) to avoid sagging and cracking. ?

9. In case of fog in winter, construction is not allowed until the fog clears and the water vapor is collected.