How to prevent yellowing of transparent silicone products?

The yellowing and discoloration of silicone products is a well-known phenomenon among many consumers. Do you think that yellowing of silicone products is a normal phenomenon?

Why do silicone rubber products exhibit yellowing? In fact, silicone yellowing is not its essence. Silicone rubber collagen material is composed of tens or millions of molecular crystals, and different components can be added to it to change its composition freely. Therefore, even if hundreds of thousands of molecular chains are not affected by chemical reactions, yellowing will still occur, but it is limited by external factors such as vulcanizing agents, raw materials, anti yellowing agents, etc!

When it comes to vulcanizing agents, many silicone rubber product manufacturers use ordinary vulcanizing agents, which can be applied to many products. However, when used as high transparency or semi transparent products, there is often yellowing when white is cast. Therefore, many silicone rubber manufacturers choose anti yellowing vulcanizing agents and add anti yellowing agents to ensure that there is no discoloration in high transparency and semi transparent products. This can ensure that the secondary odor vulcanization during high-temperature vulcanization production does not change color, and the product will not change color after long-term use!

In addition, there are certain factors in the raw materials. Generally, the raw materials for silicone products are mainly reinforced with white carbon black, and the dosage of white carbon black is used to lower the material cost and adjust the performance differently. Therefore, while improving other properties, the anti yellowing effect is affected and changed. Therefore, with the essential changes of the material, it is subject to more changes, which affects its own quality!

On the other hand, the lack of prepayment during the use of silicone protective covers can lead to yellowing of ordinary precipitation method silicone rubber. Therefore, transparent silicone products may have some yellowing effects. It is recommended not to expose them to long-term sunlight, contact with liquids, and other factors!