At the moment when the silicone industry is booming, transparent silicone products are widely used in various fields with their unique advantages. From kitchen items in daily life to electronic accessories in the high-tech field, transparent silicone products are everywhere. However, a question has quietly emerged that has plagued many manufacturers and consumers - why do transparent silicone products turn yellow?



Silicone is known for its excellent temperature resistance and anti-aging properties, and under normal circumstances, the finished product of transparent silicone should not turn yellow for several years. However, in reality, when manufacturers produce transparent silicone products, they often find that the products that should be transparent and colorless appear yellowing. What is the secret behind this difference? Today, let's unravel the mystery together.

First of all, vulcanizing agent is one of the important factors that cause the yellowing of transparent silicone products. Ordinary non-yellow vulcanizing agents have very different effects when applied to different colors of silica gel products. For brightly colored silicone products, the effect may not be obvious, but in light or transparent silicone products, the yellowing will be clearly visible after the use of ordinary vulcanizing agents. This warns manufacturers that they must be cautious when choosing vulcanizing agents, and for transparent silicone products, anti-yellowing and vulcanizing agents should be preferred to reduce the risk of yellowing from the source.

Secondly, the production process plays a key role in this. In the molding process of transparent silicone products, the temperature of the machine is too high or the vulcanization time is too long, which is like laying a hidden danger for the yellowing of the product. Too high temperature and too long vulcanization time will change the internal structure of the silicone product, resulting in yellowing after molding. Therefore, strict control of mold temperature and vulcanization time is the key link to ensure the quality of transparent silicone products. Manufacturers need to ensure product quality through accurate equipment commissioning and strict production process management.

Finally, the anti-yellowing ability of raw materials should not be overlooked. Even if an anti-yellowing agent is added to the raw material, if the transparent silicone product still turns yellow after molding, it is likely that the anti-yellowing ability of the raw material itself is not good. In this case, replacing raw materials can be an effective solution. Choosing raw materials with better quality and stronger anti-yellowing performance can fundamentally improve the anti-yellowing ability of the product and ensure that the transparent silicone products are always crystal clear.