What kind of substrate is the standard of the imitation stone paint project?

Imitation stone paint is now a popular product in the decoration market, and its excellent performance and atmospheric appearance are welcomed
by many home owners.
However, in order to make a good exterior wall water-in-sand imitation stone paint project, the steps of treatment and detection of the base layer are essential
.
If the base layer is not handled well, it is easy to have empty drums and fall off the phenomenon of paint coatingol.
com
online.

strength

Too low the strength of the base layer will affect the adhesion
of the coating.
The qualified base layer should not shed powder, no sand, no empty drum, no skin, cracking and peeling
.

Flatness

The unevenness of the base layer will affect the final decorative effect
of the water-in-sand imitation stone paint of the exterior wall.
There are four main items of flatness inspection: surface flatness, vertical yin and yang angles, vertical elevations, and square yin and yang
angles.

Dryness

The moisture of the base layer comes from the mixing cement, and the moisture can bring alkaline substances to the surface and damage the coating, so the base layer must be thoroughly dried
before applying the primer.

After the construction of mortar, concrete and other base layers, the internal moisture gradually dries
.
The drying time is directly related
to the thickness of the base layer, ventilation conditions, ambient temperature and humidity, etc.

In summer, due to high temperature and good air circulation, the moisture content can generally be reached in 14 days
.
In places with low temperature, high humidity and poor ventilation, the drying time should be extended
accordingly.

ph

The alkalinity of the base layer will not only affect the adhesion of the coating, but also cause quality accidents such as discoloration, peeling, whitening, and flowering of the coating, usually the PH value of the base layer should be less than 10
.

Cleanliness

Remove floating slurry, dust, oil, etc.
on the surface of the base layer, so that the surface is conducive to the bonding
of the coating.