[China Glass Network] 1, light transmittance
Good quality dimming glass has excellent light transmission when it is energized, clear and transparent, beautiful appearance and transparent and opaque when power is off, which can protect privacy very well. Easy test method: Put the palm of your hand on the back of the glass. When the power is off, look at the palm of the back from the front. Although you can see the blurred back, you must not see the fingerprint of the palm. Or an object can be placed 10cm according to the front glass. When the two sides of the light are balanced and not one side of the backlight, one side of the strong light, from the reverse side, the object should not be better. The light transmittance of a generally good dimming glass should be above 74%.
2, interlayer film
For dimming glass used for non-indoor use such as bathroom partitions and exterior inside curtain walls and doors and windows, should the operator adjust the glass interlayer film to the EVA layer interlayer or the PVB layer interlayer, and ask the manufacturer for the intermediate film certificate to prove that it is Use EVA film or PVB film (to prevent the profiter to shoddy, use EVA film but lie to the consumer is to use PVB film), if using PVB film, should ask for the PVB brand certificate of origin to determine whether it can be applied in the corresponding In the field (friends who are familiar with the glass industry know the difference between the quality of PVB film made in China and the PVB film of imported brands). Curtain wall glass and laminated glass for outdoor applications generally do not use EVA film as an intermediate film, because EVA is very prone to yellowing and delamination under the conditions of sun exposure or high temperature and high humidity; and because EVA has poor congenital viscosity, it leads to The safety index of the laminated glass finished product is lower than that of the impact strength, so it is generally abandoned by the curtain wall industry.
3, panel
Consumers can choose to use the corresponding glass panels according to the requirements of glass functionality in the application field. For example, tempered glass should be used as the dimming glass panel for public buildings and bathrooms with high safety factor requirements, and for outdoor curtain wall applications. Highly customers can choose to use fire-resistant glass as the panel, and use it to bend the glass to make the panel.
4, glass size
The technical strength can be judged according to the width of the glass that the manufacturer can provide. The production of dimming glass film is a technical and difficult task. The larger the size, the harder it is to produce. Therefore, many domestic manufacturers require some splicing of some orders whose width exceeds the larger size of their dimming film. As we all know, for dimming glass, if you use multiple narrow splicing of glass, it is visually ugly. For example, if you can choose a width of 1.4m, don't use two 70cm glass to splicing. It is easy to affect the visual aesthetics and its practicability (when applying the projection wall, when multiple pieces of glass are spliced, it is easy to have many seams in the middle, and the look is not good.). At present, the world's larger size dimming glass can achieve 1500mm × 3300mm.
5, hollowing out fixed
If you encounter a dimming glass that needs to be hollowed out, you should ask the manufacturer to see if you can dig holes. Because most manufacturers or new manufacturers can't meet the requirements, so please ask if you have any relevant experience or Can you do it to avoid some unnecessary troubles and losses?
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