Si (OH) 4 + NaOH [Si (OH) 3O] + H2O

     Third, the cold end of the mold measures: As above two measures are all hot end glass production, need to consider other factors, can not be adjusted in production, therefore, the cold end of mildew work becomes quite critical. First, select the appropriate mold medium, there are mainly ion exchange, mold lining paper clip method, spray mold powder (liquid) method three kinds of mold method. Wherein the ion exchange method due to cost and technology, in addition to domestic and foreign SYP AGC few foreign production line, there is no domestic wire manufacturers use; mildew lined paper clip method because of the history and habits, some manufacturers Midwest still in use, but because of the factors that influence cost and national industrial policy, has gradually be eliminated; mildew spray powder (liquid) method has become the mainstream of the development trend of float glass and mildew. In fact, one of the spray mildew liquid method, since the liquid can cover every small place across the glass surface, in theory, the effect should be better than the antifungal powder mildew by the market's positive, but it may be necessary to increase a set of equipment, and the effect of mold powder mildew meet most requirements of manufacturers, currently mostly powder method using the mold. (For poor environmental conditions, glass reservoir longer and higher quality requirements in some cases, recommended mold and mildew pink liquid dual protection measures). So choose the right mold powder is vital. Among the many performance indicators powder mildew, mold effect should first focus needs to be considered. In fact not the case, due to the impact of this indicator glass selling and not possible to quantify such factors when selecting mold powder manufacturers often do not focus off note. 

     In the "glass with anti-mold material," the industry standard which is such a requirement: clip pad glass samples moldy mold material time T2 must not be less than 2T1 (T1 refers to any material not cushion clip glass samples start Moldy time). Experimental Methods in humidity 85% (± 2%), temperature 60 ℃ (± 2 ℃) of constant temperature and humidity chamber compared under the same conditions. On the one hand, it should be said that this threshold is relatively low, most of the mold powder have to meet, on the other hand, a lot of float glass manufacturers do not have this test conditions. Therefore, most manufacturers first consideration is to compare the use of liquidity and other key indicators. It is only when the glass market downturn, stored for a long time when it can distinguish which one is better. Secondly, glass storage and transportation of moisture is also very important. Once the glass to get wet or damp, and in the rainy season, the probability of mold will be greatly enhanced. Storage time is also an important factor, it is known that any mold measures only delay and reduce the glass mold, the longer the storage time, the greater the likelihood of mold. Thus, sales in specific sales should adopt the principle of "first in first out", the first sale of the glass front of the production time. Finally, take appropriate measures in accordance with the specific requirements of downstream customers. In fact, from the microscopic point of view, the glass mold is inevitable, but the degree of severity is different, the key is used in any place. Such as general moldy glass used in windows and doors and other buildings on completely meet the requirements of a slight musty for ordinary steel, laminated and other processing will not constitute a significant impact. Most sensitive to mold is plated mirrors, coated glass and other high-end electronic client, even very slight mildew can not be accepted.