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Rotational Molding of Hot Tubs

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Rotational molding, also known as rotomolding, is a hot tub molding process used to create our Durasport Hot Tubs and Spas. A heated hollow mold is filled with a powdered high impact polyethylene polymer. The mold is mounted on a single arm machine (Durasport hot tubs and spas house two of the largest and most technologically advanced Rotomold Machines in the industry). These machines rotate the mold biaxial while heating it externally. The high impact polymer softens, therefore, uniformly coating the inside of the mold. Once cooled the two part mold is opened exposing a single piece spa.

Durasport spas benefit from consistent wall thickness and density creating spas so structurally strong we back them with a LIFETIME WARRANTY. In addition to the durable nature of our spas, they do not contain any wood, metal or vinyl, which means they will never rot, rust or tear. Durasport spas are truly portable, available in beautiful color combinations that require no maintenance, and can withstand even the harshest climates. Durasport Spas will look as beautiful in years to come as it did on the first day.

Strong Hot Tubs - DuraSport Features and Benefits