Rotational Molding Process Can Be Used For Food Grade Products

Whether rotomolded products can be applied to food grade mainly depends on the following factors:

Material Selection: A variety of thermoplastic materials can be used with the rotational molding process, but not all are suitable for food contact use. Food-grade rotational molding products must use plastic materials that meet food safety standards, such as polyethylene (PE, especially high-density polyethylene HDPE and low-density polyethylene LDPE), polypropylene (PP), etc. These materials have been extensively proven to be safe and non-toxic in food contact applications.

Production process control: During the rotational molding production process, process parameters such as temperature and time need to be strictly controlled to ensure that the plastic material is fully melted and evenly coated on the inner wall of the mold, while avoiding the generation of harmful substances. In addition, the production environment and equipment must also meet food production hygiene requirements.

Certification and compliance: Food-grade rotational molding products usually need to be tested and certified by relevant agencies, such as the US FDA (Food and Drug Administration), the European Union’s EU directives (such as 10/2011/EU on plastic materials and their products) regulations) etc. These certifications ensure that products meet food safety standards and regulatory requirements.

To sum up, rotational molding products can indeed be applied to food grade, but the prerequisite is that plastic materials that meet food safety standards must be selected, the production process must be strictly controlled, and the products must comply with relevant certification and regulatory requirements. In practical applications, many rotational molded products such as water tanks, storage tanks, food containers, etc. have been successfully used in the food industry.