Exterior wall and roof cooling coating

详情

Product introduction

JD-W is water - based exterior insulation paint. It is mainly used for buildings in southern hot provinces in summer. Its main function is to reflect the solar heat energy and prevent the roof of building walls from absorbing and storing a large amount of solar heat. It can reflect over *2% of the solar heat energy. This coating is high insulation performance, safe and environmental protection, non-toxic and tasteless, easy to use, lasting effect, low price, no peeling, no shedding, aging resistance, salt water resistance, salt fog resistance, is a decorative, functional as one of the new space energy-saving reflective heat insulation coating.

Product features
1. Spectral selection characteristics: *5% reflectance at *******0nm.

2. Thermal radiation performance: the radiant energy is within ***3.5 x m band and radiates to the outer surface.

3. Aging resistance: no change of coating in **8 years.

4. Water as the solvent is safe, environmentally friendly and free from any pollution.

5, use environment: coating temperature in - *0 ℃ *- **0 ℃

Performance parameters:

model

Water - based exterior insulation and energy - saving paint

luster

Inferior smooth

Solar reflection ratio

*3%

The emissivity

*0%

Coefficient of thermal conductivity

ASTM 0.**7 w/m.K

Table dry time

2 h or less

Recoat time

When the *0 ℃ for four hours

The wash resistance

***0 times by

The tensile strength

2.1 MPa

Water vapor permeability

8.0 x ***8 g (m s pa)

Alkali resistance

No abnormalities (*8h)

Resistance to water

No abnormalities (*6h)

solvent

Aqueous solvent

The construction area of

2.5 ~ 3 m2 / L

Range of application

Building roof, internal and external walls and roof. Storage tank, heat pipeline, cold storage, etc.

Construction instructions:

1. Substrate processing requirements:

The surface of new cement mortar concrete must undergo reasonable curing time to make it "vomit alkali" and fully dry. It is required that its moisture content is less than *0% and PH value is less than *0 before construction. The bottom surface should be dry, solid, solid, there should be no sand, crack, loose and other defects. The underlying surface must be clean and free of contaminants such as dirt, frost, oil and mold release agent. If any of the attachments are found, use a spatula, wire brush, sandpaper. Remove the detergents, rinse with clean water and dry before painting. After metope is handled, should undertake construction as soon as possible, lest pollute afresh.

Construction environment requirements:

The painting should be done as soon as possible after the substrate treatment. Substrate surface temperature and environmental temperature is generally not less than *0 ℃, the surface temperature should be at least more than 3 ℃ above the dew point. Air relative humidity shall not exceed *5%; When the environment temperature is 5 ~ *0 ℃, should inspect table dry coating speed, if the table dry in *0 minutes, can the construction. Under 5 ℃ should stop the construction.

3. Coating and coating construction:

This coating can be applied by brush, roller and spray.

After each construction is completely dry, proceed to the next construction.

L spray gun operation. The pressure should be controlled between 0.**0.8mpa when spraying. If the pressure is too low, the discharge is too slow; The pressure is too high. In addition, the vertical distance between the nozzle and the wall should be around *0cm. When the nozzle is running, it must be vertical to the coated surface and move in the plane parallel to the coated surface. When spraying, the intermediate coating is usually dense while the side is sparse, so about 1/3 of each row should be repeated. The speed of the spray gun should be uniform, such as running too fast, thin film, will appear color uneven, poor coverage problem; If run too slow, can cause local coating to be too thick even stream hang.

Packing specification:

*0kg/barrel