Most people within the plastics industry are familiar with creating a mold for plastic products. Or, at least have a general understanding of the process that goes into it. However, some general confusion still exists with product designers, engineers, and other professionals about the ins and outs of the process. There are a number of methods to make a plastic mold for products that will be used for manufacturing multiple quantities of products. Each method will take different amounts of financial investment and time. The steps below will get you moving in the right direction to create your very own plastic mold.

1. Determine Quantity

What’s the quantity of plastic products you’ll be producing? The number of parts and custom plastic pieces you need will determine the type of molding you use, and the manufacturer you work with.

Most manufacturers require that your entire build be at least 100,000 parts or greater. If this number is too high then you may have to shop around until you find the right manufacturer who is willing to do the job for you. Contact SPI Blow Molding or SPI Industries today to discuss quantities, larger plastic blow molded pieces or plastic injection molded pieces can be produced at lower quantities and still be cost effective.

2. Your Budget

What will your budget be for this plastic mold? Your budget for your project should include the design and creation of your mold, as well as future modifications.

Your budget can also influence the method of plastic molding you use, as some are cheaper than others. Also, the more complex your overall design, the more expensive the process is going to be.

3. Overall Size and Design

The type of plastic molding your project will require will be determined by the size and design of your product. You can also adapt your design to use a specific plastic molding process. For instance, when using injection molding you’ll generally have to have a smaller design. While, blow molding is usually used to create products, such as, containers, tubes and bottles.

4. Project Materials

Your project design will influence the materials and types of plastics that need to be used. Sometimes, designs will have a specific material that needs to be used for the product to function, while other times the materials can be more flexible.

11 thoughts on “How to make a plastic mold for product and parts

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