Maro Publications

Overmolding

Notes

*4/14/2014

Maro Topics

Comments

Patent Abstracts

Patent Titles

Injection Molding

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Notes

“The overmolding process involves the use of two separate materials to form one cohesive component. There are two types of overmolding: insert and “two-shot”. Insert overmolding, the more popular process, is an injection molding process where one material (usually elastomeric) is molded “over” a secondary “substrate” material (usually a rigid plastic or object).

Overmolding can add immeasurable value to product design by enhancing the end users experience in terms of comfort, ergonomics, and ease of use. In order to achieve this level of manufacturing there are two important concepts that must be understood for success to take place:1) Know your materialsThe materials used need to be compatible so that your designs attain a high level of molecular adhesion. Know what the melt temperature is of your substrate and overmold. If the melt temperature is lower on your substrate than your overmold material, then you are in for a big problem! Also, if you are using color, make sure your color concentrate is compatible with your other materials and won’t degrade their properties. Using the right materials could make or break your designs.2) Understand your designs.  When designing, you need to consider how much or how little you want your substrate and overmold to stick.  Don’t count on the material alone to create the adhesion that you want.”

(Quickparts, Overmolding, 6/25/2012)

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Interested!!
Bookmark this page to follow future developments!.
(RDC 6/5/2012)

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Roger D. Corneliussen
Editor
www.maropolymeronline.com

Maro Polymer Links
Tel: 610 363 9920
Fax: 610 363 9921
E-Mail: cornelrd@bee.net  

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Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen
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* Date of latest addition; date of first entry is 6/25/2012.