Construction instructions and precautions of dust-free room

Construction instructions:

Thickness of paint film:

Brush one primer, dry film thickness about 30μ-35μMicron

Brush the top coat two times, dry film thickness of about 35μ-40μs (Micron) in total three dry film thickness of at least 100μs

Coating interval:

1. The primer painting interval is 3 hours (min), and it is recommended to use half a day as the control point, and then carry out the next process finish painting interval of 18 hours (min). It is recommended to use 24hr as the control point, and then carry out the primer painting mode of the next process; Brush, roll and spray can be used

Finishing paint coating method; Brush, roll and spray can be used

Brush coating method must be in the same direction, need to be constructed from top to bottom, there can be no vertical flow phenomenon on the concrete construction surface, there can be no bulges, caves,? The relative humidity of construction environment should be lower than 85% for dynamic stripping, oil contamination and other phenomena

Note:

Because the total film thickness is only 100μmin, if the surface is required to be smooth, it is suggested to first grant the soil 1-2 days of rain or the phase is higher than 85%, the construction should be stopped

The moisture content of the newly cast concrete or brick wall should reach less than 10%. It takes about 20 days in summer and more than 30 days in winter to choose gloss flat, half light or three kinds of light, which need to be decided by the owner. Ground treatment:

First make sure that the moisture content is below 10%, and all dust and sundries are removed after the floor is roughened by steel ball.

G. Sealing bottom coating treatment:

After cleaning the raw material, apply the sealant with a dosage of 0.25kg/m2 on the roller and let it dry.

H. Treatment of middle coating bearing layer:

After the bottom coating is dried and hardened, the middle coating resin is mixed in an appropriate proportion, and an appropriate amount of fine sand is added to stir evenly. Then the bearing layer is coated with a rubber blade, the dosage is 1.8kg/m2, and the bearing layer is dried and hardened.