Custom Plastic Moulding: Advantages of Rotational Moulding

When considering purchasing custom plastic moulding, it is important to consider the type of plastic moulding is best for you. Rotational plastic moulding, also known as roto moulding or rotational casting is a method of forming plastic that lends itself well to a particular type of product. Unlike injection moulding or other methods, rotational moulding can produce larger plastic products. However it is not without its disadvantages. There are some designs that are simply not possible with a rotational moulding set up. Knowing what is possible should help you make an informed decision for when you need to purchase custom plastic moulding for your product.


Rotational plastics lends itself well to creating large plastic objects that simply aren’t possible with some other conventional methods. This allows people to design plastic products for applications in construction and infrastructure. However, that doesn’t mean we can’t make something small using rotational moulding.


The types of designs that work well with rotational moulding are typically symmetrical and hollow. This means the ideal plastic product is something geometric, such as water tanks, road barriers, etc. This may limit you if you intend to produce small intricate products. However, if you need something that needs to be one solid piece then rotational moulding might be advantageous. 

For more information on what is possible with rotational moulding, read our previous blog on custom plastic moulding.

If you have an idea for a plastic product and don’t know where to start contact the team at rotational plastics. Call 0800 768 284, we can help you with the design of your product to ensure it is a suitable bit for rotational plastic moulding. Creating a custom moulding can be a lengthy process, so having an invested team is important to ensure the success of your product.