About

How does solar radiation affect the surface temperature and heat flow through the roof?

When the roof is exposed to the sunlight, part of the solar radiation is reflected by the surface substrate and the rest is absorbed. The absorbed solar radiation heats the roof surface, and the heated surface partially emits radiation in the far infrared part of the spectrum.

The rest of the absorbed energy passes through the roofing material into the room, which increases the room temperature consequently. MIRACOOL™ is designed through the
state-of-the-art technology to have very high reflectance and extremely high emission of solar radiation, and low heat conductivity in order to minimize the heat flow into the room.

High-Reflective Coating Series MIRACOOL™ has accumulated a lot of valuable experience and work records in Japan and Oversea.

Now, we are very honored and happy to bring MIRACOOL™ to Hong Kong!

200W lamp heating on the model roof for 10 minutes. The roof with MIRACOOL™ is 21˚C lower than the one with normal paint.

SECTIONAL VIEW OF DRY FILM OF MIRACOOL COATING

REFLECTION OF INFRARED

This graph shows the reflection rates of the 2 paints at every ware length of the solar spectrum.
Both paints have the similar reflectance in the visible area, around 35%, which means both look as Gray in the human eye.
However there is a remarkable difference in the infrared area between the 2 paints: MIRACOOL™ marks much higher reflection than a normal paint.
This causes the difference of the temperature of the paint surface.

SOLAR SPECTRUM

The sun is burning at 5,700K, radiating solar energy to the earth. In the solar radiation, energy of the ultra violet ray accounts for only 3% energy of the visible ray accounts for 47% and the rest 50% of energy is in the infrared ray.
Our target is to reflect the infrared ray as much as possible.

SUSTAINABLE DEVELOPMENT GOALS

3. GOOD HEALTH AND WELL-BEING.
7. AFFORDABLE AND CLEAN ENERGY
8. DECENT WORK AND ECONOMIC GROWTH
13. CLIMATE ACTION
11. SUSTAINABLE CITIES AND COMMUNITIES
17. PARTNERSHIPS FOR THE GOALS

Core Values

Expand the development, manufacture and sales of water-based paints and low VOC paints.
The heat shield of the paint contributes to the suppression of greehouse gas emissions and measures against the heat island.
By reducing the heat, we will contribute to improving the working environment of our customers and protect our employees from mask heat stroke in the summer.
We will work with partner companies to realize a sustainable society.