The dipping process converts many products previously formed by injection molding. With constant upgrades to equipment, raw materials and improved technology and process control, dip molding is sometimes the best choice for a product. This process is definitely the choice for low volume or startup projects. Internal tolerances rival that of other more expensive processes. Tooling and setup can be a fraction of the cost of other processes.
The materials used will depend on your specific product's requirements, but all are very suitable for the production of complex shapes and sizes, and are available in multiple colors and finishes. Once your design is converted into molds, or mandrels, we can easily produce very small to very large quantities.
We turn your concept into a finished product and work with you throughout the development process to ensure the final product meets your design and material specifications.
- You provide the blueprint, specification, drawings, or CAD files.
- We submit a quote for production of mandrels and parts for your acceptance
- We develop the prototype mandrel (mold) or you will provide your own
- We test dip molding and provide samples to ensure the part meets the spec
- We produce the production mandrels in quantity agreed upon for the size of the run needed
- Run parts in full production
- Store your mandrels on location for further use, or will return to you upon request
Dip molding process step by step.
Dip Molding Process
- To make a special dip molded part, we first have to make a metal mandrel, or mold, that will form the inside of the product.
- The mold will be preheated in an oven to the temperature required to convert the material into a solid without burning.
- The mold is dipped in a tank of liquid PVC/plastisol, neoprene, or latex. The heat of the mold and the dipping time determine the thickness of the finished product. These variables are adjusted to meet the specifications of the product.
- The hotter the mold and the longer the dip, the thicker the coating. During the cure in the oven, the material fuses to complete the process.
- The end product will be removed from the mold manually, or with compressed air.
*If needed, the product can be cut, punched or trimmed.
Advantages of Dip Molding
Starting with one single prototype mold the startup cost for the development of your new product is much lower. In this stage changes can be made very easily and at minimum cost. Production molds are based on the size of the production run. Therefore, if you require less parts, you can have less molds produced to keep costs down.
- Low costs for the prototype of the mold
- Low costs for the production of the mold
- Small runs at reasonable cost are achievable
- Short delivery times
- Alternative colors and finishes, glossy and matte, smooth or foam can be created without new molds
- A wide range of properties are available such as durometer (hardness), and clarity
- High quality aluminum molds are stress-free resulting in long service life