FAQs
What is rotomolding powder?
Rotomolding powder, also known as rotational molding powder or rotomoldable powder, is a type of polymer material in powdered form specifically designed for the rotomolding process. It consists of fine particles of plastic resin that can be melted and molded into various hollow shapes using rotational molding equipment.
What is the purpose of rotomolding powder?
The purpose of rotomolding powder is to provide a material that can be easily melted, flowed, and solidified within a mold during the rotational molding process. It allows the production of hollow plastic products with uniform wall thickness and excellent strength, making it suitable for a wide range of applications such as tanks, containers, toys, automotive parts, and more.
What types of materials are used to make rotomolding powder?
Rotomolding powder is typically made from various types of polyethylene (PE), including high-density polyethylene (HDPE), linear low-density polyethylene (LLDPE), and medium-density polyethylene (MDPE). These materials offer good impact resistance, durability, and chemical resistance, making them ideal for rotomolding applications.
How is rotomolding powder used?
The rotomolding process involves several steps: charging the mold, heating and rotating the mold, cooling the mold, and finally demolding the finished product. In the charging step, the rotomolding powder is introduced into the mold cavity. As the mold rotates, the powder melts, coats the mold surface, and forms a hollow shape. After cooling, the mold is opened, and the solidified plastic product is removed.