Rotational Molding is used to make hollow parts. Powder or liquid resin is put in a hollow mold then heated and rotated so that the resin melts evenly and coats the inside of the cavity.
Here’s a quick overview of the details and requirements we use to guide our decision making for rotational molding use during product development.
Accuracy: ± 10% of wall thickness
Repeatability: Yes, 1 or a few molds for multiple parts
Material: Polymers and Thermoplastics
Volume of Parts: High volume
Finishing Types: High gloss to detailed texture
Form Requirements: Uniform wall thickness, any colour, as low as 0.5 mm thick, with radii 5x greater than wall thickness
Size/Weight: Small to very large
Assembly Features: Metal inserts or threaded inserts
Lead Time: 4-10 weeks
