Molding plastic is a complex process that can take anywhere from a few days to several months, depending on the size and complexity of the mold. The first step is to create a prototype of the desired product. Once the prototype is approved, the next step is to create the mold itself. 

This can be done through various methods, such as machining, 3D printing, or injection molding. However, each method has its own advantages and disadvantages that should be considered before making a decision.

The leading time for a plastic mold dramatically depends on the size, complexity of the design, and the number of cavities. A 1-cavity mold can take a few days to make while a larger 4 or 6-cavity mold can take several weeks. Most compound injection molds can take months to create.

The detailed timeline to get a custom plastic mold made.

1. Design and prototype approval: 1-2 weeks

Design ad prototype creation is the first step in the process and usually takes the longest. This is because the design must be finalized and approved before production can begin.

Once the design is complete, a prototype will be created to ensure everything works as intended. This stage can take anywhere from a few days or 1-2 weeks, depending on the design.

2. Mold creation: 3-8 weeks

Mold creation is the process that involves shaping the plastic into the desired product. This can be done through machining, 3D printing, or injection molding. The leading time of mold creation is 3-8 weeks.

3. Mold testing: 1-2 weeks

After the mold is created, it will need to be tested to ensure it produces consistent results. This stage can take 1-2 weeks.

4. Mass production: 2-4 weeks

Mass production is the final stage of the process and is where the product is made in large quantities. This stage can take 2-4 weeks, depending on the volume of products being produced.

Conclusion

The entire process can take anywhere from 6 to 16 weeks, depending on the abovementioned factors. However, if you are working with a reputable and experienced plastic injection molding company, they will be able to provide you with a more accurate timeline according to your specific project requirements.