Recently, with the implementation date of "National Food Safety Standard: Silicone Rubber Materials and Products for Food Contact" (GB 4806.16-2025) approaching on September 2, 2026, related interpretations have been released one after another. Liquid silicone rubber, closely linked to daily dietary and maternal-infant safety, has once again entered the public spotlight as a key focus of the new regulation, promising to provide consumers with more reliable safety guarantees.

It is reported that this is China's first standard specifically targeting silicone rubber for food contact. Previously, liquid silicone rubber was categorized under the general rubber classification, lacking dedicated specifications, which allowed some inferior products—such as industrial-grade silicone or recycled materials—to be falsely marketed as "food-grade," posing risks of harmful substance residues. The new regulation separates liquid silicone rubber and establishes exclusive technical requirements, not only setting limits for specific migrants like volatile substances and heavy metals but also stipulating that raw materials must comply with food contact additive standards. It even imposes strict labeling requirements—products must clearly indicate "for food contact," the standard number, and manufacturer information.

From practical cases, some companies have already encountered challenges due to non-compliance:

• A silicone sealing component manufacturer was forced to recall products because the use of non-compliant colorants led to excessive heavy metal migration.

• A silicone mold manufacturer misjudged lead migration as compliant due to unadjusted testing conditions, requiring subsequent process optimization.

For consumers, the new regulation is undoubtedly a significant benefit. It will accelerate the淘汰 of non-compliant products, making it easier to choose safe silicone kitchenware and maternal-infant products by simply checking labels.

For enterprises, although the new regulation imposes higher requirements—necessitating investments in process upgrades and improved testing—it will drive industry standardization in the long run. For the general public, this everyday liquid silicone rubber, under the protection of the new regulation, will truly become a "guardian of food safety," continuing to integrate into our daily lives in a safer and higher-quality manner.

Regarding liquid silicone rubber, please refer to our website for details: IOTA Liquid Silicone Rubber