A Simple Guide To Plastic Molding

Is Rotational Molding Right For You?

So you need a custom plastic part or product, but you don’t know how to get it made.

Is it large or small? Should it be flexible or stiff? Is it round, square, or some weird shape? Do you already have a mold, or do you need to have one made?

This guide will explain the different kinds of molding processes available today to help you discover the ideal process for your product.

*Disclaimer: Even though Fibertech exclusively offers rotational molding, we’ve gone to great lengths to make sure this guide accurately helps you choose the best form of molding for your product. Sometimes, the best choice is rotational molding… other times, it’s another kind of molding. Our goal with this guide is to be as objective as possible while pointing you in the best direction to get your part or product made with the ideal method. If you have questions or comments about this guide, feel free to contact us.

What Is Plastic Molding?

Molding, also sometimes spelled moulding, is the process of manufacturing by shaping liquid or pliable material using a rigid frame called a mold or matrix. [1]

When molding plastics, a powder or liquid polymer such as polyethylene or polypropylene is placed into a hollow mold so the polymer can take its shape. Depending on the type of process used, various ranges of heat and pressure are used to create an end product.