Dear customer friends:
Hello everyone! Today, let's talk about the odor issue of food-grade silicone. I believe many friends have concerns about the odor when purchasing related products. Now, from the professional perspective of our silicone products factory, I will provide a detailed answer for everyone.
Food-grade silicone is an environmentally friendly material that is non-toxic and odorless. Its main component is silicon dioxide, which forms a stable three-dimensional network structure through platinum-catalyzed addition reactions. Ideally, food-grade silicone products should not have a distinct odor. However, in the actual production process, there may be some situations that cause food-grade silicone products to have an odor, mainly including the following types:
1、Residues from the vulcanization process
During the high-temperature vulcanization process, if the proportion of platinum catalyst is insufficient, it will lead to incomplete crosslinking reaction. In this way, the remaining hydrogen-containing silicone oil will gradually release a slight sour smell at room temperature
2、Additive migration
To improve the performance of silicone products, such as hardness and color, some additives will be added. If the quality of these additives is not up to standard or they fail the migration test, they may seep out and produce a、chemical odor
3. Influence of storage environment
If food-grade silicone products are in sealed packaging, they may adsorb volatile substances in the packaging materials, thereby generating complex odors
How to tell if the smell is normal?
Under normal circumstances, food-grade silicone products are allowed to have a slight characteristic odor of the raw materials, but this odor should be short-lived and gradually dissipate within a certain period of time. Generally speaking, the odor dissipation time does not exceed 72 hours (in a well-ventilated environment at 25℃), and no pungent odor is produced when heated at 60℃. Meanwhile, the odor substances have been tested to be free of toxic components such as benzene series and plasticizers. If the smell of silicone products persists, or if there is a pungent "plastic smell", a sweet and greasy fragrance, or a burnt smell when heated and other abnormal odors, then there may be a safety hazard
Factory quality control
As a professional silicone products factory, Hongxiangda is well aware of the significance of the quality and safety of food-grade silicone products to our customers. During the production process, we strictly control every link to ensure that the products meet the high quality requirements. We use high-quality raw materials and strictly control the vulcanization process to ensure a full reaction. All the additives added have undergone strict screening and testing to ensure their safety and stability. Meanwhile, we will also carry out secondary vulcanization treatment on the product to further remove the residual odor. In addition, our products will undergo strict quality inspections, including odor detection. Only products that meet the standards will be released from the factory!
Customer selection and suggestions:
When choosing food-grade silicone products, it is recommended that you select products with authoritative certifications, such as FDA and LFGB. After purchase, you can smell for any persistent unpleasant odor 24 hours after opening. You can also soak it in boiling water for 30 minutes to observe if it deforms or becomes sticky. For silicone products that have already been purchased, if you are concerned about the odor issue, you can try the following methods: Place the product in a well-ventilated environment to allow the odor to dissipate naturally; Thoroughly clean the product with clean water or mild detergent to remove surface residues and chemicals. Soaking the product in hot water for 10 to 20 minutes can help accelerate the evaporation of residual chemicals inside.
In conclusion, food-grade silicone itself is odorless. If an odor occurs, it might be due to certain factors during the production process. Our factory has always been committed to manufacturing high-quality and safe food-grade silicone products, providing everyone with reliable products. If you have any questions or suggestions about our products, please feel free to contact us at any time. We will serve you wholeheartedly.
I hope the above content is helpful to you. If you have any other questions, please feel free to consult us at any time.