Gregstrom Corporation

Molds for rotational molding are inexpensive and lightweight. They can be as simple as a round object or support features such as ribs, undercuts, and...

Polyethylene rotational molding can use either linear low-density polyethylene (LLDPE) or high-density polyethylene (HDPE) to produce strong, hollow p...

Polypropylene rotational molding uses polypropylene (PP) plastic to produce strong, hollow parts for both outdoor and indoor applications. This Q&...

What’s the ideal wall thickness in rotational molding? It’s the thinnest possible wall that can meet the designer’s functional requirements and the ro...

A kiss-off in rotational molding is a solid, reinforcing structure that transmits a load from one nominal wall to another. These bridge-like structure...