Insert and Overmoulding
Your masterclass in product design and development
Protolabs’ Insight podcast series
Our Insight podcast series is aimed to help you design better parts for digital manufacturing.
We will regularly share with you podcasts packed with useful tips that will hopefully save you some time and money, from Q&A sessions to design tips.
In this episode, we discuss design considerations for injection moulded parts, with a specific focus on overmoulding and insert moulding.
The topics we will be talking through today are:
- Overmoulding: process, method, material selection, factors to consider, chemical and mechanical bonding
- Insert moulding: process and method
- Why use overmoulding and insert moulding?
Related Content

White Paper
Overmoulding and Insert Moulding
A guide to two-material moulding and bonding options with plastics, elastomers, and metal inserts.
Read White Paper

Design Tip
Building Strength into Parts with Insert Moulding
A combination of both plastic and metal, insert moulding can add strength and durability to parts
Read Design Tip

Video
Insight: Insert Moulding
Insert Moulding is a process whereby a metal insert is placed directly into the mould before plastic is injected. This eliminates secondary operations and provides robust mating of metal and plastic.
Watch Video

Video
Insight: Overmoulding
In this video we look at materials and their compatibility for the bonding process in overmoulding. We also look at the functionality requirements of the part and the aesthetic requirements.
Watch Video
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