To produce PVC rigid film, some additives must be used to improve the characteristic, such as heat stabilizers. These agents minimize loss of HCl, a degradation process that starts above 70 °C Methyl tin mercaptide is a kind of heat stabilizer specially used to make rigid film. We are using the best heat stabilizers in China, it provides excellent early color hold and long-term thermal stability after tailored design, and it can improve PVC products transparency and brightness. The heat stabilizer we used meet all requirements regulated by FDA and under European Union ROHS Act limits.
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