When it comes to rubber products, most people are surely familiar with them. They have been widely used in various fields of our lives, such as automobiles, aerospace, and medicine. Have you noticed a phenomenon? For the majority of rubber products, after being used for a period of time, their surfaces will gradually turn white. In fact, this is not a problem with the product quality. Today, Yongyong Silicone Rubber will come and talk to you about this topic of rubber products turning white.
The phenomenon of rubber products turning white refers to a "spraying of powder" or "spraying of wax" that occurs on the surface of the product after it has been produced and left for a period of time. First of all, we need to figure out what the cause of the product turning white is. The rubber raw materials are made from natural rubber and various fillers, including softeners, adhesives, and vulcanizing agents, etc., which are mixed, vulcanized, and then molded. Spraying (bloom) is a phenomenon where the liquid or solid additives in the rubber material migrate from the inside of the rubber to the surface after the product has been left for a period of time. It can be seen that the additives in the rubber material are dissolved and form a spraying effect. Waxing is the phenomenon where wax-like substances such as paraffin and paraffin wax are released on the surface of the rubber and form a layer of wax film. This is mainly related to the rubber material formula. Currently, the most effective and direct solution is to re-heat and vulcanize the rubber products in the oven. However, this cannot fundamentally solve the problem of rubber products turning white. Ultimately, the solution still lies in the material formula.
After the above explanations about the whitening of rubber products, do you have a clear understanding? If you have any questions about rubber products, please feel free to call us at 18681553593 / Mr. Wang. Yongyong Silicone Rubber has been dedicated to silicone rubber products for 25 years and provides an overall solution from material research and mold development to the manufacturing of silicone rubber products. Welcome to call for consultation.
