If you're trying to design a part through a molding process, there are actually a lot of options you can use. If you're trying to create parts that are hollow, then rotational molding is probably the best choice. It has a couple of distinct advantages.
No Lines Left Over
One thing you have to worry about when using molding to create parts is lines being left over. That isn't great because the lines take away the visual appeal of the product produced, which then has to be addressed with more costly measures.
If you use rotational molding, you're not going to have any lines left over. Instead, the molding results will be seamless. That means in just one process, you can get an optimal hollow part that ends up working out perfectly. It could be a cooler or a container that holds water.
Rotational molding can be used to create a lot of great components, but it's not a process that is overly difficult to complete. In fact, it's one of the easiest molding processes to deal with. That's because it involves very few steps and molding systems.
You just need to refine your hollow mold. Then you can pour materials inside that will eventually stick to the sides of the mold after it rotates and is heated up. Then once it has rotated and heated for enough time, the mold will cool off and leave behind a particular hollow product.
Deliver Well-Constructed Components
Going through any sort of molding process to create an end product means spending money. You'll feel good about how much you spend on rotational molding because of its ability to deliver well-constructed parts. The parts may be hollow, but they'll just be one piece.
That will give these structures a lot more durability and stability compared to if you had multiple components that were combined together using different fabrication processes. One-piece products won't be as likely to damage, and that's key for satisfying the customer base that you're trying to market to. As long as your designs are good, using rotational molding will lead to long-lasting components.
Rotational molding is a process that can yield a lot of practical products. If you plan on using this type of molding process to create something in particular, you'll see a lot of beneficial things that ultimately help you create something spectacular for a specific audience.