What is rotational molding?

Rotational molding is a plastics molding process that produces a hollow three-dimensional part.  The process can accommodate both long and short production runs, with tooling costs reflected accordingly.  Additionally, production lead times are generally shorter than other processing methods.


What materials can be rotationally molded?

Most rotational molding is done using polyethylene, but our specialty is molding in  polyvinyl chloride (PVC), which gives us many advantages over other processes and materials.


How is rotationally molding vinyl different from injection molding, blow molding, rotationally molding polyethylene, or vacuum forming?

In these other processing methods, the resulting three-dimensional parts all have a parting line or seam, and whatever detail there is must be drafted off of this parting line.  In a rotationally molded vinyl part, there is no need for a split/seam line.  The resulting vinyl part can have a tremendous amount of detail, including undercuts, without a visible parting line. Creative staffs have a great deal of latitude when designing new items and displays.


What other benefits are there to rotationally molding vinyl?
PVC, unlike polyethylene, is easy to decorate.  Paint adhesion is achieved without having to pretreat the parts, and it will last indefinitely.  Also, vinyl is unbreakable – it won't crack or chip like styrene, acrylic, or
polyurethane foam.