Guangzhou tempered glass factory, how to correctly distinguish between positive and negative coated glass?
Release time:
Oct 09,2024
We are a coated glass factory in Guangdong, which can provide you with high cost-effective coated glass prices. We also have excellent coated glass processing technology and experienced coated glass installation methods. The application effects of coated glass are industry standards.
The front and back of coated glass can be distinguished by the following methods:
1. Observe the color and gloss front characteristics: The front side (coating side) of coated glass usually has a more obvious color and gloss. For example, a silver or blue reflective layer will appear more shiny in sunlight.
Back Features: In contrast, the color and gloss of the non-coated side (back) are dull.
2. Touch Feeling
Front features: The front (coated side) is usually smoother than the back, and sometimes even has a slight greasy feel, due to the presence of the coating material. Back features: The back is relatively rough, without the smooth feeling of the front.
3. Use a light source
In a well-lit environment, tilt the glass and observe the reflection of light on the glass surface.
The front side (the coating side) usually reflects more strongly because the coating reflects light more efficiently.
The back (non-coated) side is less reflective because light is more likely to penetrate or scatter.
4. Professional tool testing
Film surface judgment instrument: This is an instrument specially used for detecting the front and back sides of coated glass. Through scanning, the coated surface and the non-coated surface can be quickly and accurately judged.
Ultraviolet or infrared lamps: These tools can also be used to help distinguish between the front and back of coated glass. The coating surface may show different reactions under UV or IR, such as color changes or fluorescent effects.
5. Other Methods
Resistance method: test the glass surface with an ordinary multimeter, the side with infinite resistance value is the glass surface, and the side with smaller resistance value is the coating surface. This is because the coating layer usually has a certain conductivity.
Imaging method: use lighter flame near the glass surface to observe whether there are ghosts of different color images. When the coating faces outward, a ghost effect may occur due to the characteristics of the coating, and the color may become red.
To sum up, by observing the color and luster, touch feeling, using light source and with the help of professional tools and other methods, can effectively distinguish the front and back of coated glass. In actual operation, an appropriate method can be selected for judgment according to the specific situation.
This is the end of today's sharing. If you want to know the cost of Guangdong Haibo coated glass, you can consult Haibo Special Glass to help you solve your doubts about the cost of Guangdong Haibo coated glass!
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China Guangdong Haibo Special Glass Technology Co., Ltd. Unified Social Credit Code: 91440101MA5AT33G12 Contact Numbers: General Manager Cao, 13178822749; General Manager Wei, 13533794186.